A magnesium ribbon is burnt in oxygen to give a white compound - X- accompanied by -160-the emission -160-of light- If the burning ribbon is now -160-placed in an atmosphere of nitrogen- it continues to burn and -160-forms a compound - Y- -160-Write the chemical formula of - X- and - Y- x - MgO - y- MgN- x - MgO - y- Mg-3N-2- x - 2MgO - y- Mg-2N-3-None of these

The correct option is B x → MgO ; y→ Mg_3N_2 Magnesium ribbon burns in oxygen( O_2 ) #160;to form magnesium oxide ( MgO ). #160; 2Mg #1 ...

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Standard X

Chemistry

Combination Reaction

A magnesium r...

Question

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 $Y$ :

x \to M g O; y \to M g N

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x \to 2 M g O; y \to M g_{2} N_{3}

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x \to M g O; y \to M g_{3} N_{2}

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None of these

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Solution

The correct option is B $x \to M g O; y \to M g_{3} N_{2}$
Magnesium ribbon burns in oxygen( $O_{2}$ ) to form magnesium oxide ( $M g O$ ).

$2 M g + O_{2} \to 2 M g O$

Therefore $X$ is $M g O$ .

Burning magnesium ribbon reacts with nitrogen( $N_{2}$ ) to form
magnesium nitride( $M g_{3} N_{2}$ ).

$3 M g + N_{2} \to M g_{3} N_{2}$

Therefore, $Y$ is $M g_{3} N_{2}$

Hence the correct option is C.

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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. Magnesium ribbon burns in air with dazzling white flame to give a compound ‘X’. If the burning ribbon is placed in a gas jar containing nitrogen gas only, it continues to burn and forms a compound ‘Y’. ‘X’ and ‘Y’ respectively are

मैग्नीशियम रिबन वायु में चमकदार श्वेत लौ के साथ जलता है तथा यौगिक ‘X’ प्राप्त होता है। यदि जलते हुए रिबन को केवल नाइट्रोजन गैस से भरे गैस जार में रखा जाता है, तो यह लगातार जलता रहता है तथा यौगिक ‘Y’ बनता है। ‘X’ तथा ‘Y’ क्रमशः हैं

Q. When magnesium ribbon is burnt in the air it will form a compound X which is Y in colour. Identify X and Y.

Q. A silvery-white metal X taken in the form of ribbon, when ignited, burns in air with a dazzling white flame to form a white powder Y. When water is added to powder Y, it dissolves partially to form another substance Z.
(a) What could metal X be?
(b) What is powder Y?
(c) With which substance metal X combines to form powder Y?
(d) What is substance Z? Name one domestic use of substance Z.
(e) Write a balanced chemical equation of the reaction which takes place when metal X burns in air to form powder Y.

A silvery-white metal X taken in the form of ribbon, when ignited, burns in air with a dazzling white flame to form a white powder Y, When water water is added to power Y, it dissolves partially to form another substance Z.

(a) What could metal X be ?

(b) What is power Y ?

(d) What is substance Z ? Name one domestic use of substance Z.

(e) Write a balanced chemical equation of the reaction which takes place when metal X burns is air to form powder Y.

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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:

The correct option is B x→MgO;y→Mg3N2Magnesium ribbon burns in oxygen(O2) to form magnesium oxide (MgO). 2Mg+O2→2MgOTherefore X is MgO.Burning magnesium ribbon reacts with nitrogen(N2) to formmagnesium nitride(Mg3N2).3Mg+N2→Mg3N2Therefore, Y is Mg3N2Hence the correct option is C.

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 $Y$ :