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Question

X+H2OY.

Y is used to remove grease stains from woollen clothes. Identify X and Y:

A
NH3,NH4Cl
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B
NH3,NH4OH
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C
NH4OH,NH3
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D
Cl2,HCl
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Solution

The correct option is B NH3,NH4OH
NH3 is used to remove grease stains from woollen clothes. Ammonia (pH 11) is a common alkaline cleaning agent. Ammonium hydroxide formed by the reaction of water and ammonia removes grease stains from cloths.
NH3+H2ONH4OH

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