Consider the following statements. (i) Atoms of $H, \, O, \, N$ and $C$ have identical properties but different mass. (ii) Matter is divisible into atoms which are further indivisible. (iii) The ratio of $N: H$ in $NH_3$ is 1 : 3 and $N : O$ in nitric oxide is 2 : 1. (iv) Dalton’s atomic theory support law of conservation of mass. Which of the following pairs of statements is true according to Dalton’s atomic theory ?

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NEET UG CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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Consider the following statements.
(i) Atoms of

H, \, O, \, N

and

C

have identical properties but different mass.
(ii) Matter is divisible into atoms which are further indivisible.
(iii) The ratio of

N: H

NH_3

is 1 : 3 and

N : O

in nitric oxide is 2 : 1.
(iv) Dalton’s atomic theory support law of conservation of mass.
Which of the following pairs of statements is true according to Dalton’s atomic theory ?

View answer and explanation

Correct option: C

(ii) and (iv)

Option C ((ii) and (iv)) is correct because Dalton's atomic theory states that matter is divisible into indivisible atoms and supports the law of conservation of mass.

NEET UG CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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