During electrolytic refining of zinc, it:

Important Questions on Metals and Non-metals

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 46

Which of the following properties is not generally exhibited by ionic compounds?

EASY

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 47

The process of heating an ore, in the absence or limited supply of air, below its melting point is called:

EASY

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 48

An element A is soft and can be cut with a knife. It is very reactive to air, therefore can not be kept open in the air. It reacts vigorously with water. Identify the element from the following:

EASY

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 4

Metals displace_____ from dilute acids whereas nonmetals do not displace.

EASY

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 5

Metals react with water to produce metal_____ and hydrogen gas whereas nonmetals do not react.

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 6

Hydrogen gas is not evolved when metals react with_____ acid as it is a strong oxidising agent.

EASY

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 7

_____ dissolves gold and platinum.

EASY

10th ICSE

IMPORTANT

Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 9

The_____ series is a list of metals arranged in the order of their decreasing reactivity.