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JEE MAIN 2026
22-01-26 S1
Question
A first row transition metal ( $M$ ) does not liberate $H_2$ gas from dilute HCl .1 mol of aqueous solution of $\mathrm{MSO}_4$ is treated with excess of aqueous KCN and then $\mathrm{H}_2 \mathrm{~S}(\mathrm{~g})$ is passed through the solution. The amount of MS (metal sulphide) formed from the above reaction is $\_\_\_\_$ mol.
Select the correct option:
A
2
B
1
C
3
D
00
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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Chemistry
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