JEE Main, NEET MCQs Set 5

JEE MAIN, AIPMT, Chemistry Question Papers – MCQs Test 5

Sr. No.




An ionic compound is expected to have tetrahedral structure if  lies in the range of

(A) 0.414 to 0.732

(B) 0.225 to 0.414

(C) 0.155 to 0.225

(D) 0.732 to 1

Answer: (B)


An octahedral complex is formed when hybrid orbitals of the following type are involved

(A) sp3

(B) d sp2

(C) d2sp3

(D) sp2d2

Answer: (C)


An organic compound on heating with CuO produces CO2 but no water. The organic

compound may be

(A) Methane

(B) Ethyl iodide

(C) Carbon tetrachloride

(D) Chloroform

Answer: (C)


An organic compound X is oxidised by using acidified K2Cr2O7. The product obtained reacts with Phenyl hydrazine but does not answer silver mirror test. The possible structure of X is

(A) (CH3)2CHOH



(D) CH3 ―  ― CH3

Answer: (A)


An oxygen containing organic compound upon oxidation forms a carboxylic acid as the only organic product with its molecular mass higher by 14 units. The organic compound is ______.

(A) a primary alcohol

(B) an aldehyde

(C) a ketone

(D) a secondary alcohol

Answer: (A)


Anisole can be prepared by the action of methyl iodide on sodium phenate. The reaction is called

(A) Wurtz’s reaction

(B) Williamson’s reaction

(C) Fittig’s reaction

(D) Etard’s reaction

Answer: (B)


Argon is used

(A) in high temperature welding

(B) in radiotherapy for treatment of cancer

(C) in filling airships

(D) to obtain low temperature

Answer: (A)


Arrange the following in the increasing order of their basic strengths :

CH3NH2, (CH3)2NH, (CH3)3N, NH3

(A) (CH3)3N < NH3 < CH3NH2 < (CH3)2 NH

(B) CH3NH2 < (CH3)2NH < (CH3)3N < NH3

(C) NH3 < (CH3)3N < (CH3)2NH < CH3NH2

(D) NH3 < (CH3)3N < CH3NH2 < (CH3)2NH

Answer: (D)


Arrange the following in the increasing order of their bond order:

O2, O, O and O

(A) O,O2, O,O

(B) O2, O, O, O

(C) O, O, O2 O

(D) O, O, O, O2

Answer: (C)


Based on the first law of thermodynamics, which one of the following is correct?

(A) For an adiabatic process: ΔU = –w

(B) For an isochoric process: ΔU = –q

(C) For a cyclic process: q = –w

(D) For an isothermal process: q = +w

Answer: (C)


The yellow precipitate formed during the chromyl chloride test is chemically
(A) lead chromate
(B) chromic acid
(C) sodium chromate
(D) lead acetate

Answer: (A)


The typical range of molar enthalpies for the strongest intermolecular (Hydrogen) bonds is
(A) 200 – 300 kJ
(B) 300 – 500 kJ
(C) 4 – 25 kJ
(D) 4 – 25 J

Answer: (C)


The time required for 100% completion of a zero order reaction is
(A) a/2k
(B) ak
(C) 2k/a
(D) a/k

Answer: (D)


The standard emf of a galvanic cell involving 2 moles of electrons in its rodox reaction is 0.59 V. The equilibrium constant for the redox reaction of the cell is
(A) 105
(B) 1020
(C) 1010
(D) 10

Answer: (B)


The spin only magnetic moment of Fe2+ ion (in BM) is approximately
(A) 7
(B) 4
(C) 6
(D) 5

Answer: (D)


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