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Standard VI

Chemistry

Compounds

The valency o...

Question

The valency of barium in barium chloride $({BaCl}_{2})$ is _____.

four

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three

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two

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one

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Solution

The correct option is C two
Barium chloride $({BaCl}_{2})$ contains barium $(Ba)$ and chlorine $(Cl)$ atoms in it. The molecular formula of a compound is written by the criss-cross method as shown below.

Element: Ba Cl
$↘ ↙$
Valency: 2 1

From the above method, valency of barium is two and that of chlorine is one.

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Similar questions

Q. An aqueous solution containing 12.48g of barium chloride in 1kg of water boils at 373.0832K . Calculate the degree of dissociation of barium chloride.

(

K_{b}

for

H_{2} O = 0.52 K K g {m o l}^{- 1}

Molar mass of

B a C l_{2} = 208.34 g {m o l}^{- 1}

)

Q. An aqueous sol. containing

12.48 g

of Barium chloride in

1.0 k g

of water boils at

373.0832 K

. Calculate the degree of dissociation of barium chloride. [Given

K_{b}

for

H_{2} O = 0.52 k m^{- 1}

, molar mass of

B a C l_{2} = 208.34 g m o l^{- 1}

]

Q. An aqueous solution containing 12.48g of barium chloride (

B a C l_{2}

) in 1000g of water, boils at

{100.0832}^{o}

C. Calculate the degree of dissociation of barium chloride. (

K_{b}

for water =

0.52 K k g m o l^{- 1}

, at. wt. Ba = 137, Cl = 35.5)

10 g of a mixture of barium chloride and anhydrous sodium sulphate is dissolved in water. An excess of barium chloride solution is added and 6.99 g of barium sulphate is precipitated according to the equation given below:

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The valency of barium in barium chloride (BaCl2) is _____.

The valency of barium in barium chloride $({BaCl}_{2})$ is _____.