Back to SOME BASIC CONCEPTS OF CHEMISTRY

JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

1 Hard

1 of 1

Application +4 | -1

A sample of sodium has a mass of

46 \mathrm{~g}

. What is the mass of the same number of calcium atoms as sodium atoms present in given sample?

View answer and explanation

Correct option: D

80 \mathrm{~g}

Option D (

80 \mathrm{~g}

) is correct because the mass of the same number of calcium atoms is twice the mass of sodium atoms since the atomic mass of calcium is approximately twice that of sodium.

More Questions from SOME BASIC CONCEPTS OF CHEMISTRY

Practice All Chapter MCQs →

If a mixture containing 3 moles of hydrogen and 1 mole of nitrogen is converted completely into ammonia, the ratio of initial and final volumes under the same temperature and pressure would be: How many g are present in one mole of Ag? 8 g of NaOH is dissolved in 18 g of

{H_2}O.

Mole fraction of NaOH in solution and molality (in

mol\,\,k{g^{ - 1}})

of the solution respectively are

2.24 {~L}

{CH}_4

at NTP contains :- One litre of

{CO}_2

is passed through red hot coke. The volume becomes 1.4 litres at same temperature and pressure. The composition of products is How many millilitre of

0.5 \mathrm{M} \mathrm{H}_2 \mathrm{SO}_4

are needed to dissolve

0.5 \mathrm{~g}

\mathrm{Cu}(\mathrm{II})

carbonate?