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JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

1 Medium

1 of 1

Application +4 | -1

The moles of

\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7

are required to react completely with

2.4 \mathrm{~mol}

\mathrm{CuS}

in hot acidic medium

View answer and explanation

Correct option: B

3.2

Option B (3.2) is correct because the number of moles of K2Cr2O7 required is calculated using the n-factor method, equating the equivalents of K2Cr2O7 and CuS.

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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

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

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0.5 \mathrm{~g}

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

carbonate?