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Which of these gases has a pungent smell?

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Important Questions on Language of Chemistry

EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions
Give one word for Combining capacity with hydrogen.
EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions
Explain the lime water test for carbon dioxide.
MEDIUM
Science>Chemistry>Language of Chemistry>Chemical Reactions
Write a word equation for: What happens when carbon dioxide is bubbled through lime water.
EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions

Give reason for the following sentence:

A foul smell is produced when iron sulphide reacts with hydrochloric acid.

EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions
Lime water turns blackish when carbon dioxide gas is passed into it.
MEDIUM
Science>Chemistry>Language of Chemistry>Chemical Reactions
In a dry cell, electrical energy is changed into chemical energy.
EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions
Define the term - Exothermic reaction.
EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions

Write the quadrants in which the following points lie:

-4,7

EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions
List the materials required to perform the lime water test.
MEDIUM
Science>Chemistry>Language of Chemistry>Chemical Reactions
Plan a way of collecting evidence to prove that carbon dioxide is made when carbon burns.
EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions

Write the word equation for the following reaction:

  • Reaction of sodium and water.
EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions
Choose the gas that turns the lime water milky.
EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions
In a dry cell, _____ energy is changed into electrical energy.
EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions
Explain what happens when iron sulphide is heated with dilute hydrochloric acid.
MEDIUM
Science>Chemistry>Language of Chemistry>Chemical Reactions
In an electrochemical cell, chemical energy changes to _____ energy.
EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions
Which of the following can conduct electricity when electricity is passed through them?
EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions
Cotyledons are also called-
HARD
Science>Chemistry>Language of Chemistry>Chemical Reactions
In certain chemical reactions a change of smell is observed.
MEDIUM
Science>Chemistry>Language of Chemistry>Chemical Reactions
When iron sulphide reacts with sulphuric acid, the smell of the gas evolved is characterised by:
EASY
Science>Chemistry>Language of Chemistry>Chemical Reactions
Write the lime water test for carbon dioxide