X=????

JEE Mains Online › Inorganic Chemistry questions › X=????

A metal X is prepared by electrolysis of fusd chloride.It reacts with hydrogen to form a colorless solid from which hydrogen is released on treatment with water.

a)Al
b)Ca
c)Cu
d)Zn

#Chemistry #Inorganic Chemistry

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6 Answers

3

msp ·2009-11-10 06:00:55

is dat calcium Bcos as far as i know calcium can be prepared by direct combination of hydrogen and it releases hydrogen on reaction with water

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1

decoder ·2009-11-10 06:19:46

but Ca reacts with hydrogen to give hydrolith (CaH₂) and that is a grey powder

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24

eureka123 ·2009-11-10 06:45:31

ans is Ca...

but I too am not convinced by it....

anyone trying it ???

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1

decoder ·2009-11-10 06:47:44

ans should be Ca but the colour condition is violating.......... i checked wiki it says it is white in pure form

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24

eureka123 ·2009-11-10 06:50:18

hmm[7][12][12]

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1

Arshad ~Died~ ·2009-11-10 07:01:46

the grey colour is due to the impurities.....in pure state it is white....
so answer is Ca only....

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