(D) The reaction of $CaH_2$ with water is: $CaH_2 + 2H_2O \to Ca(OH)_2 + 2H_2 \uparrow$The reaction of $Ca$ with water is: $Ca + 2H_2O \to Ca(OH)_2 +

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(D) The reaction of $CaH_2$ with water is: $CaH_2 + 2H_2O \to Ca(OH)_2 + 2H_2 \uparrow$The reaction of $Ca$ with water is: $Ca + 2H_2O \to Ca(OH)_2 + H_2 \uparrow$Both $CaH_2$ and $Ca$ react with water to produce hydrogen gas. Therefore,the correct option is $(d)$.

Class 11 Chemistry Hydrogen Hydrogen

Medium

Hydrogen can be obtained from water,by the action of water on

A
Calcium carbide
B
Calcium hydride
C
Calcium
D
Both $(b)$ and $(c)$

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Class 11

Chemistry Questions

Chapter

Hydrogen

Subtopic

Hydrogen

Ionic hydrides are usually

Medium

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The hydride ion $H^{-}$ is isoelectronic with which of the following?

Easy

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Which of the following orders is incorrect?

Difficult

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In which of the following processes is the highest purity $(99.9 \%)$ hydrogen obtained?

Medium

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Match List-$I$ (Fuels) with List-$II$ (Composition) and select the correct answer using the codes given below the lists.

List-$I$ (Fuels) List-$II$ (Composition)

$A$. Water gas $i$. $A$ mixture of $CO$ and $N_2$

$B$. Producer gas $ii$. Methane

$C$. Coal gas $iii$. $A$ mixture of $CO$ and $H_2$

$D$. Natural gas $iv$. $A$ mixture of $CO$,$H_2$,$CH_4$ and $CO_2$

Choose the correct sequence for $A-B-C-D$ respectively:

List-$I$ (Fuels)	List-$II$ (Composition)
$A$. Water gas	$i$. $A$ mixture of $CO$ and $N_2$
$B$. Producer gas	$ii$. Methane
$C$. Coal gas	$iii$. $A$ mixture of $CO$ and $H_2$
$D$. Natural gas	$iv$. $A$ mixture of $CO$,$H_2$,$CH_4$ and $CO_2$