Nitrous Acid Test,Separation of primary , secondary and tertiary amines by Hoffmann's method: Amines

Test Details
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The effect of hydrogen bonding is greatest in
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" } [2]=> array(3) { ["option_id"]=> string(4) "4611" ["question_id"]=> string(4) "1163" ["opt_desc"]=> string(269) "
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Which of the following is the sweetest?
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f(x) is continuous at x = 0
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f(π)=0
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f(x) = x + a – [x + b] + sin πx + cos 2πx + sin 3πx + cos 4πx + ……….+sin (2n – 1) πx + cos2 nπx for every a, b ∈ R is : (where [ ] denotes the greatest integer function)
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" } [2]=> array(3) { ["option_id"]=> string(4) "6417" ["question_id"]=> string(4) "1622" ["opt_desc"]=> string(20) "Secretin
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" } [2]=> array(3) { ["option_id"]=> string(4) "7881" ["question_id"]=> string(4) "1989" ["opt_desc"]=> string(18) "Ethyne
" } [3]=> array(3) { ["option_id"]=> string(4) "7882" ["question_id"]=> string(4) "1989" ["opt_desc"]=> string(18) "Ethane
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2025" ["question_id"]=> string(4) "1989" ["option_id"]=> string(4) "7881" } } } [22]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "162" ["ques_text"]=> string(60) "The shortest C—C bond distance is found in
" ["question_id"]=> string(4) "1999" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(4) "7919" ["question_id"]=> string(4) "1999" ["opt_desc"]=> string(19) "Diamond
" } [1]=> array(3) { ["option_id"]=> string(4) "7920" ["question_id"]=> string(4) "1999" ["opt_desc"]=> string(18) "Ethane
" } [2]=> array(3) { ["option_id"]=> string(4) "7921" ["question_id"]=> string(4) "1999" ["opt_desc"]=> string(19) "Benzene
" } [3]=> array(3) { ["option_id"]=> string(4) "7922" ["question_id"]=> string(4) "1999" ["opt_desc"]=> string(21) "Acetylene
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2035" ["question_id"]=> string(4) "1999" ["option_id"]=> string(4) "7922" } } } [23]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "173" ["ques_text"]=> string(84) "Which one of the following gives positive Fehling’s solution test?
" ["question_id"]=> string(4) "2182" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(4) "8651" ["question_id"]=> string(4) "2182" ["opt_desc"]=> string(19) "Sucrose
" } [1]=> array(3) { ["option_id"]=> string(4) "8652" ["question_id"]=> string(4) "2182" ["opt_desc"]=> string(19) "Glucose
" } [2]=> array(3) { ["option_id"]=> string(4) "8653" ["question_id"]=> string(4) "2182" ["opt_desc"]=> string(16) "Fats
" } [3]=> array(3) { ["option_id"]=> string(4) "8654" ["question_id"]=> string(4) "2182" ["opt_desc"]=> string(19) "Protein
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2218" ["question_id"]=> string(4) "2182" ["option_id"]=> string(4) "8652" } } } [24]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "177" ["ques_text"]=> string(140) "Which of the solution colligative property can provide molar mass of proteins (or polymers or colloids) with greatest precision?
" ["question_id"]=> string(4) "2193" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(4) "8695" ["question_id"]=> string(4) "2193" ["opt_desc"]=> string(28) "Osmotic pressure
" } [1]=> array(3) { ["option_id"]=> string(4) "8696" ["question_id"]=> string(4) "2193" ["opt_desc"]=> string(38) "Elevation in boiling point
" } [2]=> array(3) { ["option_id"]=> string(4) "8697" ["question_id"]=> string(4) "2193" ["opt_desc"]=> string(40) "Depression in freezing point
" } [3]=> array(3) { ["option_id"]=> string(4) "8698" ["question_id"]=> string(4) "2193" ["opt_desc"]=> string(48) "Relative lowering of vapour pressure
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2229" ["question_id"]=> string(4) "2193" ["option_id"]=> string(4) "8695" } } } [25]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "176" ["ques_text"]=> string(51) "Which of the following is the sweetest?
" ["question_id"]=> string(4) "2201" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(4) "8727" ["question_id"]=> string(4) "2201" ["opt_desc"]=> string(19) "Glucose
" } [1]=> array(3) { ["option_id"]=> string(4) "8728" ["question_id"]=> string(4) "2201" ["opt_desc"]=> string(20) "Fructose
" } [2]=> array(3) { ["option_id"]=> string(4) "8729" ["question_id"]=> string(4) "2201" ["opt_desc"]=> string(19) "Maltose
" } [3]=> array(3) { ["option_id"]=> string(4) "8730" ["question_id"]=> string(4) "2201" ["opt_desc"]=> string(19) "Sucrose
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2237" ["question_id"]=> string(4) "2201" ["option_id"]=> string(4) "8728" } } } [26]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "181" ["ques_text"]=> string(143) "The greatest height to which a man can throw a stone is H. The greatest distance up to which he can throw the stone is (H/2).
" ["question_id"]=> string(4) "2231" } ["Option"]=> array(2) { [0]=> array(3) { ["option_id"]=> string(4) "8831" ["question_id"]=> string(4) "2231" ["opt_desc"]=> string(4) "True" } [1]=> array(3) { ["option_id"]=> string(4) "8832" ["question_id"]=> string(4) "2231" ["opt_desc"]=> string(5) "False" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2267" ["question_id"]=> string(4) "2231" ["option_id"]=> string(4) "8832" } } } [27]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "180" ["ques_text"]=> string(41) "Iodoform test is not given by
" ["question_id"]=> string(4) "2235" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(4) "8843" ["question_id"]=> string(4) "2235" ["opt_desc"]=> string(23) "2-pentanone
" } [1]=> array(3) { ["option_id"]=> string(4) "8844" ["question_id"]=> string(4) "2235" ["opt_desc"]=> string(19) "Ethanol
" } [2]=> array(3) { ["option_id"]=> string(4) "8845" ["question_id"]=> string(4) "2235" ["opt_desc"]=> string(19) "Ethanal
" } [3]=> array(3) { ["option_id"]=> string(4) "8846" ["question_id"]=> string(4) "2235" ["opt_desc"]=> string(29) "3-pentanone
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2271" ["question_id"]=> string(4) "2235" ["option_id"]=> string(4) "8846" } } } [28]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(2) "60" ["ques_text"]=> string(46) "Frog’s testes do not possess
" ["question_id"]=> string(4) "2553" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(5) "10097" ["question_id"]=> string(4) "2553" ["opt_desc"]=> string(30) "Interstitial cells
" } [1]=> array(3) { ["option_id"]=> string(5) "10098" ["question_id"]=> string(4) "2553" ["opt_desc"]=> string(32) "Seminiferous tubules
" } [2]=> array(3) { ["option_id"]=> string(5) "10099" ["question_id"]=> string(4) "2553" ["opt_desc"]=> string(25) "Sertoli cells
" } [3]=> array(3) { ["option_id"]=> string(5) "10100" ["question_id"]=> string(4) "2553" ["opt_desc"]=> string(28) "Seminal vesicles
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2592" ["question_id"]=> string(4) "2553" ["option_id"]=> string(5) "10099" } } } [29]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "125" ["ques_text"]=> string(503) "If f (x) = cos where [.] denotes the greatest integer function then its derivative at x = (π/2)1/3 is equal to
" ["question_id"]=> string(4) "2609" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(5) "10321" ["question_id"]=> string(4) "2609" ["opt_desc"]=> string(13) "0
" } [1]=> array(3) { ["option_id"]=> string(5) "10322" ["question_id"]=> string(4) "2609" ["opt_desc"]=> string(35) "3(π/2)1/3
" } [2]=> array(3) { ["option_id"]=> string(5) "10323" ["question_id"]=> string(4) "2609" ["opt_desc"]=> string(79) "-3(π/2)1/3
" } [3]=> array(3) { ["option_id"]=> string(5) "10324" ["question_id"]=> string(4) "2609" ["opt_desc"]=> string(25) "none of these
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2648" ["question_id"]=> string(4) "2609" ["option_id"]=> string(5) "10321" } } } [30]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "125" ["ques_text"]=> string(151) "The function f(x) = [x]2 – [x2] (where [y] is the greatest integer less than or equal to y) is discontinuous at
" ["question_id"]=> string(4) "2614" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(5) "10341" ["question_id"]=> string(4) "2614" ["opt_desc"]=> string(24) "all integers
" } [1]=> array(3) { ["option_id"]=> string(5) "10342" ["question_id"]=> string(4) "2614" ["opt_desc"]=> string(39) "all integers except o and 1
" } [2]=> array(3) { ["option_id"]=> string(5) "10343" ["question_id"]=> string(4) "2614" ["opt_desc"]=> string(33) "all integers except 0
" } [3]=> array(3) { ["option_id"]=> string(5) "10344" ["question_id"]=> string(4) "2614" ["opt_desc"]=> string(33) "all integers except 1
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2653" ["question_id"]=> string(4) "2614" ["option_id"]=> string(5) "10344" } } } [31]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "194" ["ques_text"]=> string(100) "The shortest distance between the lines x + a = 2y – 12z and x = y + 20 = 6(z-a)is
" ["question_id"]=> string(4) "2668" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(5) "10557" ["question_id"]=> string(4) "2668" ["opt_desc"]=> string(15) "a/2
" } [1]=> array(3) { ["option_id"]=> string(5) "10558" ["question_id"]=> string(4) "2668" ["opt_desc"]=> string(13) "a
" } [2]=> array(3) { ["option_id"]=> string(5) "10559" ["question_id"]=> string(4) "2668" ["opt_desc"]=> string(14) "2a
" } [3]=> array(3) { ["option_id"]=> string(5) "10560" ["question_id"]=> string(4) "2668" ["opt_desc"]=> string(14) "3a
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2707" ["question_id"]=> string(4) "2668" ["option_id"]=> string(5) "10559" } } } [32]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "200" ["ques_text"]=> string(82) "The greatest term in the expansion of (1+x)10 when x=2/3 is
" ["question_id"]=> string(4) "2755" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(5) "10905" ["question_id"]=> string(4) "2755" ["opt_desc"]=> string(32) "210(2/3)4
" } [1]=> array(3) { ["option_id"]=> string(5) "10906" ["question_id"]=> string(4) "2755" ["opt_desc"]=> string(32) "210(2/3)6
" } [2]=> array(3) { ["option_id"]=> string(5) "10907" ["question_id"]=> string(4) "2755" ["opt_desc"]=> string(32) "210(3/2)4
" } [3]=> array(3) { ["option_id"]=> string(5) "10908" ["question_id"]=> string(4) "2755" ["opt_desc"]=> string(15) "210
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2795" ["question_id"]=> string(4) "2755" ["option_id"]=> string(5) "10905" } } } [33]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "202" ["ques_text"]=> string(299) "A student appears for test I, II and III. The student is successful, is he passes either in tests I and II or in tests I and III. The probabilities of the student passing in tests I, II and III are p, q and 1/2 respectively. If the probability that the student is successful is 1/2, then
" ["question_id"]=> string(4) "2791" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(5) "11049" ["question_id"]=> string(4) "2791" ["opt_desc"]=> string(17) "p=q=1
" } [1]=> array(3) { ["option_id"]=> string(5) "11050" ["question_id"]=> string(4) "2791" ["opt_desc"]=> string(20) "p=0, q=1
" } [2]=> array(3) { ["option_id"]=> string(5) "11051" ["question_id"]=> string(4) "2791" ["opt_desc"]=> string(20) "p=1, q=0
" } [3]=> array(3) { ["option_id"]=> string(5) "11052" ["question_id"]=> string(4) "2791" ["opt_desc"]=> string(22) "p=1, q=1/2
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "2831" ["question_id"]=> string(4) "2791" ["option_id"]=> string(5) "11051" } } } [34]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "217" ["ques_text"]=> string(139) "If the sum of the coefficients in the expansion of (1+2x)n is 6561, the greatest term in the expansion for x =1/2 is
" ["question_id"]=> string(4) "2989" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(5) "11841" ["question_id"]=> string(4) "2989" ["opt_desc"]=> string(26) "4th
" } [1]=> array(3) { ["option_id"]=> string(5) "11842" ["question_id"]=> string(4) "2989" ["opt_desc"]=> string(26) "5th
" } [2]=> array(3) { ["option_id"]=> string(5) "11843" ["question_id"]=> string(4) "2989" ["opt_desc"]=> string(26) "6th
" } [3]=> array(3) { ["option_id"]=> string(5) "11844" ["question_id"]=> string(4) "2989" ["opt_desc"]=> string(25) "None of these
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "3029" ["question_id"]=> string(4) "2989" ["option_id"]=> string(5) "11842" } } } [35]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "223" ["ques_text"]=> string(166) "The lengths of two opposite edges of a tetrahedron are p and q, their shortest distance is equal to d and the angle between them is θ. Its volume is
" ["question_id"]=> string(4) "3078" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(5) "12197" ["question_id"]=> string(4) "3078" ["opt_desc"]=> string(30) "1/6 pdp sinθ
" } [1]=> array(3) { ["option_id"]=> string(5) "12198" ["question_id"]=> string(4) "3078" ["opt_desc"]=> string(30) "1.3 pdp cosθ
" } [2]=> array(3) { ["option_id"]=> string(5) "12199" ["question_id"]=> string(4) "3078" ["opt_desc"]=> string(30) "1/6 pdp cosθ
" } [3]=> array(3) { ["option_id"]=> string(5) "12200" ["question_id"]=> string(4) "3078" ["opt_desc"]=> string(30) "1/3 pdp tanθ
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "3118" ["question_id"]=> string(4) "3078" ["option_id"]=> string(5) "12197" } } } [36]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "255" ["ques_text"]=> string(9038) "Three particles A, B and C of equal mass are moving with the same velocity v along the medians of an equilateral triangle. These particle collide at the centre G of triangle. After collision A becomes stationary, B retraces its path with velocity v then the magnitude and direction of velocity of C will be
v and opposite to B
" } [1]=> array(3) { ["option_id"]=> string(5) "14070" ["question_id"]=> string(4) "3546" ["opt_desc"]=> string(57) "v and in the direction of A
" } [2]=> array(3) { ["option_id"]=> string(5) "14071" ["question_id"]=> string(4) "3546" ["opt_desc"]=> string(57) "v and in the direction of C
" } [3]=> array(3) { ["option_id"]=> string(5) "14072" ["question_id"]=> string(4) "3546" ["opt_desc"]=> string(57) "v and in the direction of B
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "3594" ["question_id"]=> string(4) "3546" ["option_id"]=> string(5) "14072" } } } [37]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "277" ["ques_text"]=> string(194) "All the edges of a block with parallel faces are unequal. It’s longest edge is twice its shortest edge. The ratio of the maximum to minimum resistance between parallel faces is
" ["question_id"]=> string(4) "3816" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(5) "15146" ["question_id"]=> string(4) "3816" ["opt_desc"]=> string(13) "2
" } [1]=> array(3) { ["option_id"]=> string(5) "15147" ["question_id"]=> string(4) "3816" ["opt_desc"]=> string(13) "4
" } [2]=> array(3) { ["option_id"]=> string(5) "15148" ["question_id"]=> string(4) "3816" ["opt_desc"]=> string(13) "8
" } [3]=> array(3) { ["option_id"]=> string(5) "15149" ["question_id"]=> string(4) "3816" ["opt_desc"]=> string(103) "Indeterminate unless the length of the third edge is specified40
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "3865" ["question_id"]=> string(4) "3816" ["option_id"]=> string(5) "15147" } } } [38]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "286" ["ques_text"]=> string(176) "Consider the spectral line resulting from the transition from n = 2 to n = 1 in atoms and ions given below. The shortest wavelength is produced by
" ["question_id"]=> string(4) "3924" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(5) "15578" ["question_id"]=> string(4) "3924" ["opt_desc"]=> string(25) "Hydrogen atom
" } [1]=> array(3) { ["option_id"]=> string(5) "15579" ["question_id"]=> string(4) "3924" ["opt_desc"]=> string(26) "Deuterium atom
" } [2]=> array(3) { ["option_id"]=> string(5) "15580" ["question_id"]=> string(4) "3924" ["opt_desc"]=> string(33) "Singly ionized helium
" } [3]=> array(3) { ["option_id"]=> string(5) "15581" ["question_id"]=> string(4) "3924" ["opt_desc"]=> string(34) "Doubly ionized lithium
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "3973" ["question_id"]=> string(4) "3924" ["option_id"]=> string(5) "15581" } } } [39]=> array(3) { ["Question"]=> array(3) { ["test_id"]=> string(3) "294" ["ques_text"]=> string(134) "A person can throw a stone to a maximum distance of 100 m. the greatest height to which he can throw the stone is
" ["question_id"]=> string(4) "4102" } ["Option"]=> array(4) { [0]=> array(3) { ["option_id"]=> string(5) "16290" ["question_id"]=> string(4) "4102" ["opt_desc"]=> string(26) "100 m
" } [1]=> array(3) { ["option_id"]=> string(5) "16291" ["question_id"]=> string(4) "4102" ["opt_desc"]=> string(25) "75 m
" } [2]=> array(3) { ["option_id"]=> string(5) "16292" ["question_id"]=> string(4) "4102" ["opt_desc"]=> string(25) "50 m
" } [3]=> array(3) { ["option_id"]=> string(5) "16293" ["question_id"]=> string(4) "4102" ["opt_desc"]=> string(25) "25 m
" } } ["Answer"]=> array(1) { [0]=> array(3) { ["answer_id"]=> string(4) "4151" ["question_id"]=> string(4) "4102" ["option_id"]=> string(5) "16292" } } } }Test Details