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Standard XII

Chemistry

Empirical & Molecular Formula

Find the rati...

Question

Find the ratio by mass of the combining elements in the $M g C l_{2}$ .

2:1

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24:1

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24:71

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none of these

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Solution

The correct option is C 24:71
$M g C l_{2}$
$\Rightarrow M g : C l \times 2$
$\Rightarrow 24 : 35.5 \times 2$
$\Rightarrow 24 : 71$

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M g C l_{2}

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Question 25
Find the ratio by mass of the combining elements in the following compounds.

(a) $C a C O_{3}$ (d) $C_{2} H_{5} O H$

(b) $M g C l_{2}$ (e) $N H_{3}$

(c) $H_{2} S O_{4}$ (f) $C a (O H)_{2}$

Q. Express the HCF of numbers

72

and

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as a linear combination of

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Q. Find the ratio by mass of the combining elements in ammonia :

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Find the ratio by mass of the combining elements in the MgCl2.

The correct option is C 24:71MgCl2⇒Mg:Cl×2⇒24:35.5×2⇒24:71

Find the ratio by mass of the combining elements in the $M g C l_{2}$ .

The correct option is C 24:71
$M g C l_{2}$
$\Rightarrow M g : C l \times 2$
$\Rightarrow 24 : 35.5 \times 2$
$\Rightarrow 24 : 71$