Action of Heat on Given Substances

IMPORTANT

Action of Heat on Given Substances: Overview

In this topic, we will discuss the action of heat on given substances. Here, we are provided with various substances, and we will perform an experiment on each substance. We will obtain the result by analysing the action of heat on them.

Important Questions on Action of Heat on Given Substances

MEDIUM
IMPORTANT

Ammonium dichromate does not decompose on heating.

MEDIUM
IMPORTANT

What happens when ammonium dichromate is strongly heated. Give reaction.

MEDIUM
IMPORTANT

The products of thermal decomposition of ammonium dichromate are:

MEDIUM
IMPORTANT

Name the compounds formed when Lead (II, IV) oxide is heated.

HARD
IMPORTANT

Write a balanced chemical equation for the thermal decomposition reaction of copper nitrate.

MEDIUM
IMPORTANT

Write two observations when copper nitrate is heated.

MEDIUM
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A reddish-brown fume which is formed by the thermal decomposition of copper nitrate is:

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IMPORTANT

The colourless gas obtained on heating lead nitrate is:

MEDIUM
IMPORTANT

What are the products obtained when lead nitrate is heated?

MEDIUM
IMPORTANT

The yellow substance obtained on heating lead nitrate is _____.

MEDIUM
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Identify the type of reaction when zinc nitrate is heated.

HARD
IMPORTANT

When zinc nitrate is heated the amount of solid residue obtained is weighed less than the mass of the taken salt. Why?

MEDIUM
IMPORTANT

Give the balanced chemical reaction for zinc nitrate when it is heated.

MEDIUM
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The reddish-brown fume that is formed on heating zinc nitrate is:

MEDIUM
IMPORTANT

What is the black substance formed on heating copper sulphate?

HARD
IMPORTANT

What type of change is observed when blue vitriol is gradually heated to about 800 °C?

MEDIUM
IMPORTANT

On heating blue vitriol between 100 °C-300 °C the type of change occur is:

HARD
IMPORTANT

A metal carbonate when heated, gives a compound that is yellow, but turns white immediately as it is cooled. The metal carbonate is:

MEDIUM
IMPORTANT

Give the reaction for thermal decomposition of zinc carbonate.

MEDIUM
IMPORTANT

Observe the change that takes place in zinc oxide that is formed when zinc carbonate is heated.