MEDIUM
10th Chhattisgarh Board
IMPORTANT
Earn 100

Give reasons why gaseous elements were discovered quite late as compared to solid elements.

Important Questions on Chemistry of Non-Metals

MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 11 - Chemistry of Non-Metals>Questions>Q 3
The elements of group 18 do not normally take part in chemical reactions, why?
MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 11 - Chemistry of Non-Metals>Questions>Q 1
Find out the non-metals that make up these acids: hydrochloric acid, sulphurous acid and carbonic acid.
MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 11 - Chemistry of Non-Metals>Questions>Q 2
Non-metals are electronegative. Why?
HARD
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 11 - Chemistry of Non-Metals>Questions>Q 3
You are given an element; how will you identify whether it is metal or non-metal? Give three means.
HARD
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 11 - Chemistry of Non-Metals>Questions>Q 1
Write the balanced chemical equations for reactions of calcium, lithium and aluminium with hydrogen.
EASY
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 11 - Chemistry of Non-Metals>Questions>Q 2
Which gas is used in packaged foods and why?
MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 11 - Chemistry of Non-Metals>Questions>Q 3
In laboratory, oxygen is collected in an upturned, water-filled test tube or gas jar. Why?
MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 11 - Chemistry of Non-Metals>Exercise>Q 1
The solution of water of which of the following will be acidic