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Byju's Answer

Standard VIII

Chemistry

Change of State

Which of the ...

Question

Which of the following substances contains greatest mass of chlorine?

5.0

C l_{2}

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0.5

mol

C l_{2}

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0.10

mol

K C l

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30.0

M g C l_{2}

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Solution

The correct option is B $0.5$ mol $C l_{2}$
$0.5$ mol of $C l_{2}$ means $35.5$ g of $C l$ .
$0.10$ mol of $K C l$ means $3.55$ g of $C l$ .
$30.0$ g $M g C l_{2}$ means $30 \times \frac{71}{95}$ $=$ $22.42$ g $C l$ .
Hence, greatest mass of $C l$ is present in $0.5$ mol of $C l_{2}$ .

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Similar questions

C l_{2} + 2 K O H \to K C l + K C l O + H_{2} O

3 K C l O \to 2 K C l + K C l O_{3}

4 K C l O_{3} \to K C l + 3 K C l O_{4}

2 moles of chlorine gas reacted with an excess of potassium hydroxide and 50 g of potassium perchlorate was obtained. Calculate the percentage yield of perchlorate in the reaction.
Molar mass of potassium perchlorate = 138.5 g/mol

Q. For the following reaction:

P C l_{5} (g) ⇌ P C l_{3} (g) + C l_{2} (g)

0.4 m o l

P C l_{5} (g)

0.2 m o l

P C l_{3} (g)

and

0.6 m o l

C l_{2} (g)

are taken in a

1 L

flask.
If

K_{c} = 0.2

, then the direction in which reaction proceeds is :

Q. (i)

4 L i + O_{2} \to 2 L i_{2} O

21.0

g of lithium reacts with

32.0

g of

O_{2}

(ii)

2 K + C l_{2} \to 2 K C l

3.9

g of

K

reacts with

4.26

g of

C l_{2}

.
[The atomic weight of

L i = 7

g and

K = 39

g while molecular weight of

L i_{2} O = 30

g/mol and

K C l = 74.5

g/mol.]

Which of the following statements is/are correct?

Q. A

0.5

g sample containing

M n O_{2}

on treatment with

H C l

liberates

C l_{2}

. The

C l_{2}

is passed into a solution of

K I

and

30.0

mL of

0.1 M N a_{2} S_{2} O_{3}

are required to titrate the liberated iodine. Calculate the percentage of

M n O_{2}

in the sample (as nearest integer).

[Given that the atomic weight of

M n = 55

g/mol]

Q. Identify the role of chlorine in the following reaction:

M g + C l_{2} \to M g C l_{2}

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Which of the following substances contains greatest mass of chlorine?

The correct option is B 0.5 mol Cl20.5 mol of Cl2 means 35.5 g of Cl.0.10 mol of KCl means 3.55 g of Cl.30.0 g MgCl2 means 30×7195 = 22.42 g Cl.Hence, greatest mass of Cl is present in 0.5 mol of Cl2.

The correct option is B $0.5$ mol $C l_{2}$
$0.5$ mol of $C l_{2}$ means $35.5$ g of $C l$ .
$0.10$ mol of $K C l$ means $3.55$ g of $C l$ .
$30.0$ g $M g C l_{2}$ means $30 \times \frac{71}{95}$ $=$ $22.42$ g $C l$ .
Hence, greatest mass of $C l$ is present in $0.5$ mol of $C l_{2}$ .