List of top Chemistry Questions

Silicon doped with electron elements of group-13 forms.

Match List -I with List-II

	List -I		List-II
A	Kaolinite	I	FeCO3
B	Siderite	II	ZnCO3
C	Malachite	III	[AL2(OH)4Si2 O5]
D	Colamine	IV	CuCO3.Cu(OH)2)

Choose the correct answer from the option given below

The correct increasing order of basic strength of amine is:
(A) \(CH_5NH_2<NH_3 <CHCH_2NH_2 < C_2H_5NH_2 < (CH)_2NH \)
(B) \(NH_3 <C_6H_5NH_2 < CHCH_2NH_2 < C_2H_5NH_2 < (C_2H_5)_2NH \)
(C) \(C_6H_5CH_2NH_2 <C_6H_5NH_2 < NH_3 <C_2H_5NH_2 < (C_2H_5)_2NH \)
(D) \(C_2H_5NH_2 < (C_2H_5)_2NH < C_6H_5NH_2 < NH_3\)
Choose the correct answer from the options given below:

During bromination of phenol, lewis acid is not necessary required because of:

Match List-I with List-II.

List-I		List-II
(A)	D	(I)	Loss of blood clotting
(B)	C	(II)	Rickets
(C)	B6	(III)	Scurvy
(D)	K	(IV)	Convulsions

Choose the correct answer from the options given below:

The rate constants of a reaction at 200 K and 300 K are 0.02 s^-1 and 0.04 s^-1. Ea for this reaction will be:

H-bond does not exist in:

Hydroxylation of Trans But-2-ene results in the formation of-

\(C_2H_5OH\xrightarrow{X}C_2H_5Cl\xrightarrow{Y}C_2H_5CN\)
X and Y used in the above reaction are:

Match List -I with List-II

	List -I		List-II
A	Gel	I	Hair cream
B	Foam	II	Dust
C	Emulsion	III	Cheese
D	Aerosol	IV	Whipped cream

Choose the correct answer from the option given below

The solution which shows positive deviation from Raoult's Law, is the mixture of

Which of the following is incorrect?

Arrange the following solids in the decreasing order of their magnetic strength in the presence of external magnetic field.
A. NaCl
B. CrO₂
C. MnO
D. Fe₃O₄

A drop of solution (Volume 0.05 mL) contains \( 3.0 \times 10^{-6} \) moles of H\(^+\) ions. If the rate constant of disappearance of H\(^+\) is \( 1.0 \times 10^{-7} \, \text{mol litre}^{-1} \text{sec}^{-1} \), how long will it take for H\(^+\) ions to disappear?

Decreasing order of reducing power of the given species as per their standard reduction potential is :
A. -2.36
B. +0.54
C. +1.23
D. -0.74
E. + 1.81
Choose the correct answer from the options given below:

$[NiCl_2(PPh_3)_2]$ is named as:

The increasing order of magnetic behaviour for following complex is
A. \([Ti(H_2O)_6]^{3+}\)
B. \([V(H_2O)_6]^{3+}\)
C. \([MnCl_4]^{2-}\)
D. \([MnF_6]^{3-}\)
E. \([Cr(H_2O)_6]^{3+}\)
Choose the correct answer from the options given below:

When blood cells are placed in 1%(W/V) NaCl aquem solution

A galvanic cell converts:

Aniline upon heating with conc. HNO₃ and concentrated H₂SO₄ mixture gives.

In Freundlich adsorption isotherm, the value of \( \frac{1}{n} \) is:

Acid Rain is caused due to _________.

In the below given hypothetical equation
\(r = k[A]^x [B]^y\)
If the concentration of [B] is kept constant and concentration of [A] is increased to 3 times, the reaction rate increases 27 times, then the order of reaction with respect to A is:

Graphite is a good conductor of electricity due to the presence of-

Atoms of element B form hcp lattice and those of the element A occupy \(\frac{2^{rd}}{3}\) of octahedral voids. What is the formula of the compound formed by the element A and B?