List of top Chemistry Questions

Match List I with List II :

List-I Coordination entity		List-II Wavelength of light absorbed in nm
A.	\([CoCl(NH_3​)_5​]^{2+}\)	I.	310
B.	\([Co(NH_3​)_6​]^{3+}\)	II.	475
C.	\([Co(CN)_6​]^{3−}\)	III.	535
D.	\([Cu(H_2​O)_4​]^{2+}\)	IV.	600

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Identify A, B and C in the sequence :

Which of the following are fat soluble vitamins:
(A) vit A
(B) vit B
(C) vit D
(D) vit E
(E) vit K
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Electronic configuration of d⁶ when Δ_a < P

In order to differentiate between N-methylmethanamine and N,N-Dimethylmethanamine, the reaction to be used is :

Arrange the following oxoacids of phosphorus in the correct decreasing order of their reducing strength.
A. H₄P₂O6
B. H₃PO₂
C. H₄P₂O₇
D. H₃PO₃
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The magnetic moment of the complex species- [Fe(H₂O)₆]^2- and K₂[MnCl₄] are 5.3 and 5.9 respectively. The number of unpaired electrons respectively are :

Zinc metal reacts with dilute nitric acid to liberate gas :

Which of the following does not depict an isomer of oxetane

The bond angle in methanol is :

Match List I with List II

List I		List II
A.	CH3CH2NH2	I.	N,N-Dimethylamiline
B.		II.	Ethylamine
C.	C6H5NH2	III.	Aniline
D.	C6H5N(CH3)2	IV.	Trimethylamine

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Which compound is formed when a secondary alcohol is oxidized ?

Aldol condensation results due to-

The sodium soap prepared from glyceryl palmite
(C₁₅H₃₁COO)₃C₃H₅ is :

The canary bird is used to detect ________ gas in the Singareni coal of fields.

Arrange the following in increasing order of their boiling points :
A. CH₃CH₂CH₂CHO
B. CH₃CH₂CH₂CH₂OH
C. C₂H₅OC₂H₅
D. CH₃CH₂CH₂CH₂CH₃
E. CH₃CH₂CH₂COOH
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Arrange the following in increasing order of their basic strength :
A. NH₃
B. AsNH₃
C. PH₃
D. BiH₃
E. SbH₃
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KMnO₄ + H₂SO₄ + X → MnSO₄ + K₂SO₄ + H₂O + CO₂
Identify X :

Order and molecularity in the given reaction is
CHCl₃ + Cl₂ → CCl₄ + HCl
Rate = \(k[CHCl^3][Cl_2]^{\frac{1}{2}}\)

Which of the following compounds contain at least one secondary alcoholic group :

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Identify the pseudohalogen from the following ions :

Match List I with List II

List I		List II
A.	Rosenmund reduction	I.	CrO2Cl2CS2,H3O+
B.	Etard Reaction	II.	CO, HCl Anhyd. AlCl3/CuCl
C.	Gamenman-Koch reaction	III.	H2-Pd-BaSO4
D.	Clemmensen reduction	IV.	Zn-Hg/HCl

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Match List -I with List-II

	List -I		List-II
A	Buna-S	I	Vinyl chloride
B	Neoprene	II	1,3-Butadiene and styrene
C	PVC	III	Tetra flouroethene
D	Teflon	IV	Chloroprene

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Which of the following statements are correct?
(A) Glucocorticoids control the carbohydrate metabolism
(B) Testosterone is major female sex hormone 
(C) Insulin is released in response to increase in blood sugar 
(D) Hypothyroidism is caused by low level of thyroxine 
(E) Mineralocorticoid is major male sex hormone 
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Select the reagents a and b respectively, used in the Hell-Volhard-Zelinsky reaction :

X - Cl, Br
A. X₂
B. X₂ / Red Phosphorus
C. H₂O
D. SoCl₂
E. X₂ / Yellow Phosphorus
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