water obtained after distillations

HARD

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What is formed when calcium carbide reacts with heavy water?

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Important Questions on Hydrogen

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

Which of the following statements about water is FALSE?

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

Identify the incorrect statement regarding heavy water:

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

What are the products obtained when water is auto-ionised?

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

Choose the correct statement applicable for the reaction:

2 H_{2} O + 2 F_{2} \to 4 HF + O_{2}

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

In reference to water, choose the correct statement

(i) It gets oxidised to $O_{2}$ during photosynthesis.

(ii) It gets reduced to $H_{2}$ by highly electropositive metal.

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

Which of the following compounds is NOT present in its standard state at

25^{o} C

and

1

atmosphere pressure?

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Heavy Water

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

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 :

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	$D_{2} {SO}_{4}$