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WBJEE Chemistry Test - 2 - JEE MCQ


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30 Questions MCQ Test - WBJEE Chemistry Test - 2

WBJEE Chemistry Test - 2 for JEE 2024 is part of JEE preparation. The WBJEE Chemistry Test - 2 questions and answers have been prepared according to the JEE exam syllabus.The WBJEE Chemistry Test - 2 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for WBJEE Chemistry Test - 2 below.
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WBJEE Chemistry Test - 2 - Question 1

Which of the following species can act both as Bronsted acid and base ? NH₂⁻ 2. HCO₃⁻ 3. NH₄⁺ 4. HSO₄⁻ Select the correct answer using the codes given below :

Detailed Solution for WBJEE Chemistry Test - 2 - Question 1
Bronsted lowry acid base definition:- Acid - which can donate H+ Base - which can accept H+ HCO3(-) acts as acid by donating H+ and becomes CO3(2-) , acts as base by accepting H+ and becomes H2CO3 similarly HSO4(-) becomes SO4(2-) and H2SO4. NH2(-) becomes NH3 and NH(2-)
WBJEE Chemistry Test - 2 - Question 2

Which of the following will not give iodoform test?

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WBJEE Chemistry Test - 2 - Question 3

 Acetone and acetaldehyde are differentiated by

Detailed Solution for WBJEE Chemistry Test - 2 - Question 3

Acetaldehyde gives silver mirror with Tollen's reagent
CH3CHO + 2[Ag(NH3)2] OH → CH3COONH4 + 2Ag + H2O + 3NH3
Acetone does not give this test

WBJEE Chemistry Test - 2 - Question 4

Nitrates of all the metals are

WBJEE Chemistry Test - 2 - Question 5

Which of the following is not a preliminary test used to detect ions

WBJEE Chemistry Test - 2 - Question 6

The wavelength of light waves is inversely proportional to its

WBJEE Chemistry Test - 2 - Question 7

Which of the following alkyl group has the maximum + I effect?

WBJEE Chemistry Test - 2 - Question 8

The enzymes which convert glucose and fructose into ethyl alcohol is

WBJEE Chemistry Test - 2 - Question 9

Which of the the following has least bond energy?

WBJEE Chemistry Test - 2 - Question 10

The enthalpies of combustion of carbon and carbon monoxide are -393.5 and -283 KJ mol⁻¹ respectively .The enthalpy of formation of carbon monoxide per mol is

WBJEE Chemistry Test - 2 - Question 11

A glass bulb is filled with NO₂ gas and immersed in an ice bath at 0°C which becomes colourless after some time . This colourless gas will be

WBJEE Chemistry Test - 2 - Question 12

Units of rate constant for first and zero order reaction in terms of molarity (M) units are resectively

WBJEE Chemistry Test - 2 - Question 13

Given that 

WBJEE Chemistry Test - 2 - Question 14

The soaps are salts of higher fatty acids containing chains of

WBJEE Chemistry Test - 2 - Question 15

The systematic name of (CH₃)₂CH-COOH is

WBJEE Chemistry Test - 2 - Question 16

2,4 Dinitrophenyl hydrazine is an example for :

Detailed Solution for WBJEE Chemistry Test - 2 - Question 16


is a monodentate ligand.

WBJEE Chemistry Test - 2 - Question 17

The process associated with manufacture of sodium carbonate is known as

WBJEE Chemistry Test - 2 - Question 18

The density of gas at 27°C and 1 atm is d. Pressure remaining constant at which of the following temperatures will its density become 0.75 d ?

Detailed Solution for WBJEE Chemistry Test - 2 - Question 18

 

At same pressure and same number of moles¸

WBJEE Chemistry Test - 2 - Question 19

What is formed when boron is heated with concentrated H₂SO₄?

WBJEE Chemistry Test - 2 - Question 20

Which does not exist?

WBJEE Chemistry Test - 2 - Question 21

The P-P-P bond angle in white phosphorus is

WBJEE Chemistry Test - 2 - Question 22

 Which one of the following substances is used in the laboratory for a fast drying of neutral gases?

WBJEE Chemistry Test - 2 - Question 23

Which of the following isomerism is not exhibited by alkanes?

WBJEE Chemistry Test - 2 - Question 24

 Heaviest particle is

Detailed Solution for WBJEE Chemistry Test - 2 - Question 24
The heaviest particle of an atom is its neutron. It is due to its weight difference from others. It is 0.18% heavier than the proton which makes it the most heaviest. 
WBJEE Chemistry Test - 2 - Question 25

Which of the following on hydrolysis forms acetic acid?

WBJEE Chemistry Test - 2 - Question 26

Terylene is used for making

WBJEE Chemistry Test - 2 - Question 27

Which of the following is a polyamide molecule?

WBJEE Chemistry Test - 2 - Question 28

The oxidation number of Mn in KMnO₄ is

WBJEE Chemistry Test - 2 - Question 29

The crystal system of a compound with unit cell dimensions a=0.387, b=0.387 and c=0.0504 nm and α = β = 90°and γ = 120°is

WBJEE Chemistry Test - 2 - Question 30

In the Fischer projection formula, the representation of meso-butane-2,3-diol is :

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