Mg - H2SO4 - A - H2 Mg dilute Mg - 2H2SO4 - A - B - 2H2O- Concentrated A B are

Mg + H_2SO_4 → MgSO_4 + H_2 (Mg) Mg + 2H_2SO_4 → MgSO_4 + SO_2 + 2H_2O (Concentrated) ...

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Byju's Answer

Standard XIII

Chemistry

Extraction of Magnesium

Mg + H2SO4 → ...

Question

$M g + H_{2} S O_{4} \to A - - + H_{2} (M g) (d i l u t e)$

$M g + 2 H_{2} S O_{4} \to A - - + B - - + 2 H_{2} O . (C o n c e n t r a t e d)$ A & B are

M g S O_{4}, S O_{3}

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M g O, S O_{3}

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M g S O_{4}, S O_{2}

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M g O, S O_{2}

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Solution

The correct option is C $M g S O_{4}, S O_{2}$
$M g + H_{2} S O_{4} \to M g S O_{4} - ------- - + H_{2} (M g)$

$M g + 2 H_{2} S O_{4} \to M g S O_{4} - ------- - + S O_{2} - --- - + 2 H_{2} O (C o n c e n t r a t e d)$

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Similar questions

$M g + H_{2} S O_{4} \to A - - + H_{2} (M g) (d i l u t e)$

$M g + 2 H_{2} S O_{4} \to A - - + B - - + 2 H_{2} O . (C o n c e n t r a t e d)$ A & B are

Q. When Mg reacts with dilute

H_{2} S O_{4}

, which gas is released?

Q. In the reaction,

M g + 2 H_{2} O ⟶ X + H_{2}

What is X?

When magnesium metal reacts with sulphuric acid it forms magnesium sulphate along with the evolution of hydrogen gas.

$M g + H_{2} S O_{4}$ $\to$ $M g S O_{4}$ + $H_{2}$

For experimental studies the conditions of the reaction was modified and rate of reaction was monitored. In which of the following case the occurance of the reaction is fastest?

$M g + H_{2} S O_{4} \to A - - + H_{2} (M g) (d i l u t e)$

$M g + 2 H_{2} S O_{4} \to A - - + B - - + 2 H_{2} O . (C o n c e n t r a t e d)$ A & B are

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Mg + H2SO4 → A–– + H2 (Mg) (dilute) Mg + 2H2SO4 → A–– + B–– + 2H2O. (Concentrated) A & B are

The correct option is C MgSO4,SO2Mg + H2SO4 → MgSO4––––––––– + H2 (Mg) Mg + 2H2SO4 → MgSO4––––––––– + SO2––––– + 2H2O (Concentrated)

$M g + H_{2} S O_{4} \to A - - + H_{2} (M g) (d i l u t e)$

$M g + 2 H_{2} S O_{4} \to A - - + B - - + 2 H_{2} O . (C o n c e n t r a t e d)$ A & B are

The correct option is C $M g S O_{4}, S O_{2}$
$M g + H_{2} S O_{4} \to M g S O_{4} - ------- - + H_{2} (M g)$

$M g + 2 H_{2} S O_{4} \to M g S O_{4} - ------- - + S O_{2} - --- - + 2 H_{2} O (C o n c e n t r a t e d)$