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WBJEE Chemistry Test - 13 - JEE MCQ


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30 Questions MCQ Test WBJEE Sample Papers, Section Wise & Full Mock Tests 2025 - WBJEE Chemistry Test - 13

WBJEE Chemistry Test - 13 for JEE 2024 is part of WBJEE Sample Papers, Section Wise & Full Mock Tests 2025 preparation. The WBJEE Chemistry Test - 13 questions and answers have been prepared according to the JEE exam syllabus.The WBJEE Chemistry Test - 13 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for WBJEE Chemistry Test - 13 below.
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WBJEE Chemistry Test - 13 - Question 1

KMnO₄ reacts with oxalic acid according to the equation :
2MnO₄ + 5C₂ O₄2-+ 16H⁺ →2MN2+ + 10CO₂ + 8H₂O Here 20 ml. of 0.1 M KMnO₄ is equivalent to ?

WBJEE Chemistry Test - 13 - Question 2

Phenol can be distinguished from ethyl alcohol by all reagents except

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WBJEE Chemistry Test - 13 - Question 3

The addition of HCN to carbonyl compounds is an example of

WBJEE Chemistry Test - 13 - Question 4
A bond formed between two elements having electronegativity 1.2 and 3.0 respectively is most likely
WBJEE Chemistry Test - 13 - Question 5
Dimethyl glyoxime in a suitable solvent was refluxed for 10 minutes with pure pieces of nickel sheet, it will result in
WBJEE Chemistry Test - 13 - Question 6
If the radius of first Bohr orbit be a₀, then the radius of the third orbit of hydrogen would be
WBJEE Chemistry Test - 13 - Question 7
Which of the following alkyl group has the maximum + I effect?
WBJEE Chemistry Test - 13 - Question 8
What happens when conc. H₂SO₄ is treated with sugar?
WBJEE Chemistry Test - 13 - Question 9
AgCl is soluble in
Detailed Solution for WBJEE Chemistry Test - 13 - Question 9
AgCl is a sparingly soluble salt and in its aqueous the following equilibrium exists-
AgCl Ag+ + Cl-
When NH4OH is added to a saturated solution of AgCl, Ag+ ions are removed from the system as soluble (Ag(NH3)2)+1 ions and the previous equilibrium is disturbed. To maintain the equlibrium constant more AgCl goes into solution. Therefore AgCl becomes more soluble in NH4OH solution
WBJEE Chemistry Test - 13 - Question 10
The heat of neutralisation is determined by
WBJEE Chemistry Test - 13 - Question 11
According to Le-Chatelier's principle, adding heat to a solid and liquid in equilibrium will cause the
WBJEE Chemistry Test - 13 - Question 12
Which of these does not influence the rate of reaction?
WBJEE Chemistry Test - 13 - Question 13
All the naturally occurring processes proceed spontaneously in a direction which leads to
WBJEE Chemistry Test - 13 - Question 14
Alizarin belongs to the class of
WBJEE Chemistry Test - 13 - Question 15
A compound with molecular formula C₇H₁₆ shows optical isomerism , the compound will be
WBJEE Chemistry Test - 13 - Question 16

In which of the following complex ion, the central metal ion is in a state of sp3 d2  hybridisation?

WBJEE Chemistry Test - 13 - Question 17
Roasted ore is reduced to metal by
WBJEE Chemistry Test - 13 - Question 18

If 0.44 g of a colourless oxide of nitrogen occupies 224 ml at 1520 mm hg and 273oC, then the compound is

WBJEE Chemistry Test - 13 - Question 19
Which of the following processes does not involve a catalyst?
WBJEE Chemistry Test - 13 - Question 20
The metal used for making radiation shield is
WBJEE Chemistry Test - 13 - Question 21
The true statement for the acids of phosphorus H₃PO₂,H₃PO₃ and H₃PO₄ is
WBJEE Chemistry Test - 13 - Question 22
Which of the following metal evolves hydrogen on reacting with cold dilute HNO₃ ?
WBJEE Chemistry Test - 13 - Question 23
Which of the following will show geometrical isomerism?
WBJEE Chemistry Test - 13 - Question 24
Heaviest particle is
WBJEE Chemistry Test - 13 - Question 25
Which of the following is a strongest base?
WBJEE Chemistry Test - 13 - Question 26
The turbidity of a polymer solution measures
WBJEE Chemistry Test - 13 - Question 27
An example of a natural biopolymer is
WBJEE Chemistry Test - 13 - Question 28
Which of the following reactions involves oxidation and reduction?
WBJEE Chemistry Test - 13 - Question 29

How many Cl- ions are there around Na⁺ ion in NaCl crystal?

WBJEE Chemistry Test - 13 - Question 30
Consider the following statements about conformational isomers :
1. They are interconverted by rotation about single bond.
2. The energy barrier separating them is less than 15 kcal/mole.
3. They are best represented by means of Fischer Projection formulae.
Of these statements
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