(A) Sodium hydrogencarbonate $(NaHCO_{3})$,commonly known as Baking soda,is used in certain types of fire extinguishers because it releases $CO_{2}$ g

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(A) Sodium hydrogencarbonate $(NaHCO_{3})$,commonly known as Baking soda,is used in certain types of fire extinguishers because it releases $CO_{2}$ gas upon heating or reacting with an acid,which helps in extinguishing the fire.

Class 11 Chemistry s-Block Elements Alkali metals

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Which one of the following compounds is used as a chemical in certain types of fire extinguishers?

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A
Baking Soda
B
Soda ash
C
Washing Soda
D
Caustic Soda

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Class 11

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Chapter

s-Block Elements

Subtopic

Alkali metals

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The alkali metals which form normal oxide,peroxide,as well as superoxides are:

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Match the following alloys in List-$I$ with their uses in List-$II$:
List-$I$ (Alloy) List-$II$ (Use)
$A$. $Li-Pb$ $I$. In aircraft construction
$B$. $Be-Cu$ $II$. To make bearings for motor engines
$C$. $Mg-Al$ $III$. To make tetraethyl lead
$D$. $Na-Pb$ $IV$. To make high strength springs

List-$I$ (Alloy)	List-$II$ (Use)
$A$. $Li-Pb$	$I$. In aircraft construction
$B$. $Be-Cu$	$II$. To make bearings for motor engines
$C$. $Mg-Al$	$III$. To make tetraethyl lead
$D$. $Na-Pb$	$IV$. To make high strength springs

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