Match the atomic masses of the elements:

(I) K - (a) 39 (ii) Na - (b) 16 (iii) Cl - (c) 23 (iv) O - (d) 35.5

i - a; ii - c; iii - d; iv - b;

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i - d; ii - c; iii - a; iv - b;

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i - c; ii - a; iii - d; iv - b;

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i - a; ii - b; iii - c; iv - d;

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Solution

The correct option is A
i - a; ii - c; iii - d; iv - b;

Atomic mass of Potassium is 39.09 $\approx$ 39

Chlorine is 35.453 $\approx$ 35.5

Oxygen is 15.999 $\approx$ 16

Sodium is 22.989 $\approx$ 23

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Similar questions

Q. Can the following groups of elements be classified as Dobereiner's triads?

(a) Na, Si, Cl
(b) Be, Mg, Ca
Give reason for your answer.
(Atomic masses : Be 9 ; Na 23 ; Mg 24 ; Si 28 ; Cl 35.5 ; Ca 40)

Calculate the relative molecular masses of (Use K = 39, Cl = 35.5, O = 16, C = 12, H = 1, Na = 23, N = 14, S = 32)
(a) potassium chlorate
(b) sodium acetate
(c) chloroform
(d) ammonium sulphate

Match the atomic masses of the following:
(a) K (i) 55
(b) Mn (ii) 39
(c) O (iii) 16
(d) Mg (iv) 24.3

What are the correct sets of Atomic masses (u) and Elements?

(i) N-14

(ii) Sulphur-34

(iii)Chlorine-36

(iv) Mg-24

(v) Cl-35.5

(vi) Oxygen-8

(vii)Na-23

Q. Match the given elements with their respective atomic mass.

Elements	Atomic mass (amu)
(a) Nitrogen	(i) 23
(b) Oxygen	(ii) 40
(c) Sodium	(iii) 14
(d) Calcium	(iv) 16

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Match the atomic masses of the elements: (I) K - (a) 39 (ii) Na - (b) 16 (iii) Cl - (c) 23 (iv) O - (d) 35.5

The correct option is A i - a; ii - c; iii - d; iv - b; Atomic mass of Potassium is 39.09 ≈ 39 Chlorine is 35.453 ≈ 35.5 Oxygen is 15.999 ≈ 16 Sodium is 22.989 ≈ 23

Match the atomic masses of the elements:

(I) K - (a) 39 (ii) Na - (b) 16 (iii) Cl - (c) 23 (iv) O - (d) 35.5

The correct option is A
i - a; ii - c; iii - d; iv - b;

Atomic mass of Potassium is 39.09 $\approx$ 39

Chlorine is 35.453 $\approx$ 35.5

Oxygen is 15.999 $\approx$ 16

Sodium is 22.989 $\approx$ 23