What are metalloids? Give any two examples.

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 1

Write the balanced chemical equations for reactions of calcium, lithium and aluminium with hydrogen.

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

MEDIUM

10th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-10>Chapter 11 - Chemistry of Non-Metals>Exercise>Q 1

Which of the following elements does not exhibit allotropy?

EASY

10th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-10>Chapter 11 - Chemistry of Non-Metals>Exercise>Q 1

Which among the following is a metalloid?