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BITSAT Chemistry Test - 7 - JEE MCQ


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30 Questions MCQ Test - BITSAT Chemistry Test - 7

BITSAT Chemistry Test - 7 for JEE 2024 is part of JEE preparation. The BITSAT Chemistry Test - 7 questions and answers have been prepared according to the JEE exam syllabus.The BITSAT Chemistry Test - 7 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for BITSAT Chemistry Test - 7 below.
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BITSAT Chemistry Test - 7 - Question 1

Which of the following does not give iodoform test

BITSAT Chemistry Test - 7 - Question 2

Glucose forms a silver mirror with Tollen's reagent. This shows a presence of

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BITSAT Chemistry Test - 7 - Question 3

In hydrogen atom, energy of first excited state is -3.4 eV. Then find out the K.E. of the electron in the same orbit of hydrogen atom

BITSAT Chemistry Test - 7 - Question 4

The energy of an electro-magnetic radiation is 19.875 x 10 − 13 ergs. What is the wave number in cm-1

BITSAT Chemistry Test - 7 - Question 5

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

BITSAT Chemistry Test - 7 - Question 6

The least count of an instrument is 0.01cm. Taking all precautions, the most possible error in the measurement can be

BITSAT Chemistry Test - 7 - Question 7

The number of equivalents of Na2S2O3 required for the volumetric estimation of one equivalent of Cu2+ is

Detailed Solution for BITSAT Chemistry Test - 7 - Question 7

Volumetric estimation of Cu2+ is carried out iodometrically as follows:
2 Cu2+ + 4 Kl = 2 Cul2 + 4K+
2 Cul2 = 2 Cul + l2
This liberated l2 is titrated against Na2S2O3 solution
2Na2S2O3 + l2 = Na2S4O6 + 2 Nal
2 moles Cu2+ ions ≡ 1 mole l2 ≡ 2 moles of Na2S2O3
∴ 1 mole Cu2+ ion ≡ 1 mole Na2S2O3
Eq. wt. of Na2S2O3 = mol. wt
∴ 1 mole Cu2+ ion ≡ 1 Eq. wt. of Na2S2O3

BITSAT Chemistry Test - 7 - Question 8

Which of the following does not have sp2-hybridised carbon?

BITSAT Chemistry Test - 7 - Question 9

If fatty acid is to fat then glucose is to

BITSAT Chemistry Test - 7 - Question 10

Which of the following gives maximum energy in metabolic process?

BITSAT Chemistry Test - 7 - Question 11

The reaction,

is fastest when X is

BITSAT Chemistry Test - 7 - Question 12

If an endothermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then

BITSAT Chemistry Test - 7 - Question 13

Which one of the following molecules will have unequal bond lengths around the central atom?

BITSAT Chemistry Test - 7 - Question 14

A chemical reaction is catalyzed by a catalyst X. Hence X

BITSAT Chemistry Test - 7 - Question 15

Photosensitizer is a substance which

BITSAT Chemistry Test - 7 - Question 16

As per the modern periodic law the physical and chemical properties of elements are periodic function of their

Detailed Solution for BITSAT Chemistry Test - 7 - Question 16

Modern periodic law states " If the elements are arranged in order of their increasing atomic numbers, the elements with similar properties are repeated after certain regular intervals.

BITSAT Chemistry Test - 7 - Question 17

The heat of combustion of yellow and red phosphorus are -9.91 kJ mol⁻1 and -8.78 kJ mol⁻1 respectively. The heat of conversion of yellow P → red P is

BITSAT Chemistry Test - 7 - Question 18

Which of these is a hypnotic?

BITSAT Chemistry Test - 7 - Question 19

The dark blue colour of the solution formed when excess of ammonia is added to a solution of copper (II) sulphate is due to the presence of the ion :

BITSAT Chemistry Test - 7 - Question 20

Which of the following series involves gradual filling of 5f-level?

BITSAT Chemistry Test - 7 - Question 21

Which of the following element belongs to the third row transition series?

BITSAT Chemistry Test - 7 - Question 22

In which of the following reaction, hydrogen is acting as an oxidising agent?

BITSAT Chemistry Test - 7 - Question 23

Name the alkene with the molecular formula C₁₀H₂₀

BITSAT Chemistry Test - 7 - Question 24

In electrophilic substitution reactions nitrobenzene is

BITSAT Chemistry Test - 7 - Question 25

The process used for the removal of hardness of water is

BITSAT Chemistry Test - 7 - Question 26

In which of the following acid-base titration pH is greater than8 at the equivalence point ?

BITSAT Chemistry Test - 7 - Question 27

Which of the following compounds will be most easily attacked by an electrophile ?

BITSAT Chemistry Test - 7 - Question 28

Which of the following oxides of nitrogen reacts with FeSO₄ to form a dark brown compound?

BITSAT Chemistry Test - 7 - Question 29

In the reaction 4HNO₃ + P₄O₁₀ → 4HPO₃ + X, the product X is

BITSAT Chemistry Test - 7 - Question 30

BF₃ acts as an acid according to the concept of

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