MEDIUM
10th CBSE
IMPORTANT
Earn 100

Why are ionic compounds usually hard?

Important Questions on Metals and Non-Metals

MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>TEST YOURSELF>Q 11
How is that ionic compounds in the solid state do not conduct electricity, and they do so when in the molten state?
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>TEST YOURSELF>Q 11
Name the solvent in which ionic compounds are generally soluble.(water/alcohol)
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>TEST YOURSELF>Q 12

Zinc granules are placed in each of the four solutions A, B, C and D as shown. Colour change would be observed in.
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MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>TEST YOURSELF>Q 13
Which of the following reaction does not occur:
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>TEST YOURSELF>Q 14
Ferrous sulphate crystals are dissolved in water. The colour of the solution is.
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>TEST YOURSELF>Q 15
Two beakers A and B contain iron (II) sulphate solution. In the beaker A, a small piece of copper and in the beaker B a small piece of zinc are placed. It is found after some time that a grey deposit forms on zinc but not on copper. From these observations it can be concluded that:
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>TEST YOURSELF>Q 16
Write chemical equation for the following reaction.
 Zinc carbonate is heated in the absence of air.
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>TEST YOURSELF>Q 16

Write chemical equations for the following reactions.

A mixture of Cu2O and Cu2S is heated.