EASY

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Among the following, select the correct order of property.

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Important Questions on Hydrogen

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

How and why does the density of liquid water change on prolonged electrolysis?

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Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

Identify the incorrect statement regarding heavy water:

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

What are $X$ and $Y$ respectively in the following reactions

$\underline{X} + D_{2} O \to C_{2} D_{2} + P$

$\underline{Y} + D_{2} O \to {CD}_{4} + Q$

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Heavy water is used for the study of reaction mechanism.
Reason (R): The rate of reaction for the cleavage of

O - H

bond is slower than that of

O - D

bond.
Choose the most appropriate answer from the options given below :

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

The INCORRECT statement(s) about heavy water is (are)
(A) used as a moderator in nuclear reactor
(B) obtained as a by-product in fertilizer industry.
(C) used for the study of reaction mechanism
(D) has a higher dielectric constant than water
Choose the correct answer from the options given below:

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

The number of protons, electrons and neutrons in a molecule of heavy water is respectively

HARD

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

Match the following.

	Column-1 Reaction		Column-2 Main product
A	${SO}_{3} \overset{heavy water}{⟶}$	I	$C_{2} D_{2}$
B	${CaC}_{2} \overset{heavy water (excess)}{⟶}$	II	${CD}_{4}$
C	${Al}_{4} C_{3} \overset{heavy water (large excess)}{⟶}$	III	$D_{2} {SO}_{3}$
		IV	$C_{2} D_{4}$
		V	$D_{2} {SO}_{4}$

The correct match is

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

Statements about heavy water are given below.

A. Heavy water is used in exchange reactions for the study of reaction mechanisms.

B. Heavy water is prepared by exhaustive electrolysis of water.

C. Heavy water has higher boiling point than ordinary water.

D. Viscosity of $H_{2} O$ is greater than $D_{2} O$ .

Choose the most appropriate answer from the options given below:

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

What is the boiling point of heavy water?

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

Which of the following statement is not true?

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Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

Heavy water is used in atomic reactor as-

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Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

Which of the following statements about heavy water are correct?

$(a)$ Heavy water is used as a moderator in nuclear reactors.

$(b)$ Heavy water is more associated than ordinary water.

$(c)$ Heavy water is a more effective solvent than ordinary water.

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Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

Heavy water is prepared by prolonged electrolysis of ordinary water. The principle is that