Question 36
A magnesium ribbon is burnt in oxygen to give a white compound X accompanied by emission of light. If the burning ribbon is now placed in an atmosphere of nitrogen, it continues to burn and forms a compound Y.

(a) Write the chemical formulae of X and Y.

(b) Write a balanced chemical equation, when X is dissolved in water.

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Solution

$2 Mg + O_{2} \to 2 MgO$
$3 Mg + N_{2} \to {Mg}_{3} N_{2}$

(a) $X$ is $MgO (Magnesium oxide)$ ; $Y$ is ${Mg}_{3} N_{2} (Magnesium nitride)$

(b) $MgO + H_{2} O \to {Mg(OH)}_{2}$

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Question 36
A magnesium ribbon is burnt in oxygen to give a white compound X accompanied by emission of light. If the burning ribbon is now placed in an atmosphere of nitrogen, it continues to burn and forms a compound Y.

(a) Write the chemical formulae of X and Y.

(b) Write a balanced chemical equation, when X is dissolved in water.

Q. A magnesium ribbon is burnt in oxygen to give a white compound

X

accompanied by the emission of light. If the burning ribbon is now placed in an atmosphere of nitrogen, it continues to burn and forms a compound

Y

. Write the chemical formula of

X

and

Y

Q. Question 20.2

Write the balanced chemical equation for the following reaction and identify the type of reaction.

Magnesium ribbon is burnt in an atmosphere of nitrogen gas to form solid magnesium nitride.

Q. When magnesium ribbon burns in air or oxygen, a product is formed. State the type of chemical reaction and name the product formed in the reaction. Write the balanced chemical equation of this reaction.

Q. A solution of ________ is formed when the white ash formed by burning magnesium ribbon is dissolved in water.

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Basic Oxides of Metals

Standard X Chemistry

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2Mg+O2→2MgO 3Mg+N2→Mg3N2 (a) X is MgO (Magnesium oxide) ; Y is Mg3N2 (Magnesium nitride) (b) MgO+H2O→Mg(OH)2

$2 Mg + O_{2} \to 2 MgO$
$3 Mg + N_{2} \to {Mg}_{3} N_{2}$

(a) $X$ is $MgO (Magnesium oxide)$ ; $Y$ is ${Mg}_{3} N_{2} (Magnesium nitride)$

(b) $MgO + H_{2} O \to {Mg(OH)}_{2}$