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JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

1 Hard

1 of 1

Application +4 | -1

m_A

gram of a metal

A

displaces

m_B

gram of another metal

B

from its salt solution and if the equivalent weights are

E_A

and

E_B

respectively then equivalent weight of

A

can be expressed as:

View answer and explanation

Correct option: A

E_A=\frac{m_A}{m_B} \times E_B

Option A (

E_A=\frac{m_A}{m_B} \times E_B

) is correct because it directly applies Faraday's laws of electrolysis, which state that the mass of a substance deposited or dissolved is proportional to its equivalent weight.

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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.

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

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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

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0.5 \mathrm{~g}

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

carbonate?