Home
Class 10
CHEMISTRY
Mary was heating some sugar in an evapor...

Mary was heating some sugar in an evaporating dish with the help of a Bunsen burner. After sometime, she got a burnt out black substance.
1. What must have happened to the sugar?
2. Give a balanced chemical equation.
3. Name the type ofreaction

Text Solution

Verified by Experts

1.Sugar has broken down to give products carbon and water.
2. The balanced chemical.equation is, `underset"Sugar " (C_12H_22O_11) to underset"Carbon"(12C) + 11H_2O`
3. It is a decomposition reaction
Promotional Banner

Similar Questions

Explore conceptually related problems

(a) Write the chemical equation in the balanced form. Fe(s) + H_(2)O(g) to Fe_(3)O_(4)(s) + H_(2)(g) (b) Identify the type of reaction from the equation given below : Na_(2)SO_(4)(aq) + BaCl_(2) (aq) to BaSO_(4)(s) + NaCI(aq) (c) You could have noted that when copper powder is heated in a china dish, the surface of copper powder gets coated with black coloured substance. (i) Why is this black coloured substance formed ? (ii) What is this black substance ? (iii) Write the chemical equation of the reaction taking place.

When the powder of a common metal is heated in an open china dish, colour turns black. However, when hydrogen gas is passed over the hot black substance formed, it regains its original colour. Based on this information, answer the following questions : (i) What type of chemical reaction takes place in each of the two given steps ? (ii) Name the metal initially taken in the powder form. Write balanced chemical equations for both these reactions.