The table given below compares some properties of metals and non-metals. Write down the missing statements ( i ) to ( iv ) : Metals Non-metals ( i ) ________ ( i ) Poor conductors of heat ( ii ) Malleable ( ii ) Are ________ ( iii ) Form positive ions ( iii ) ________ ( iv ) ________ ( iv ) Form acidic oxides

Properties of metals are: They are good conductors of heat and electricity and also malleable, i.e., can be beaten into thin sheets. Metal atoms lose electrons from their outer shell when they form ions: the ions are positive, because they have more protons than electrons and form basic oxides when they react with oxygen. Properties of Non-Metals are: They are poor conductors of heat and electricity and also brittle in nature. Non-metal atoms gain electrons to become negatively charged ions and form acidic oxides when they react with oxygen thus turning blue litmus solution to red. Metals Non-Metals ( i ) Good conductors of heat and electricity ( i ) Poor conductors of heat ( ii ) Malleable ( ii ) Are Brittle ( iii ) Form positive ions ( iii ) Form negative ions ( iv ) Form basic oxides ( iv ) Form acidic oxides

E M B I B E

Secondary Chemistry Class X>Chapter 3 - Metals and Nonmetals>FORMATIVE ASSESSMENT OUESTIONS FOR CCE>Q 24

EASY

10th CBSE

IMPORTANT

Earn 100

Name two metals which can displace hydrogen from hydrochloric acid.

Important Questions on Metals and Nonmetals

HARD

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 3 - Metals and Nonmetals>FORMATIVE ASSESSMENT OUESTIONS FOR CCE>Q 25

A solution of copper sulphate was taken in an iron vessel. After a few days the iron vessel was found to have small holes in it. Explain the observation and give the chemical equation.

MEDIUM

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 3 - Metals and Nonmetals>FORMATIVE ASSESSMENT OUESTIONS FOR CCE>Q 26

What will happen if a strip of zinc is immersed in a solution of copper sulphate?

MEDIUM

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 3 - Metals and Nonmetals>FORMATIVE ASSESSMENT OUESTIONS FOR CCE>Q 27

A copper coin is kept immersed in a solution of silver nitrate for some time. What will happen to the coin and the colour of the solution?

MEDIUM

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 3 - Metals and Nonmetals>FORMATIVE ASSESSMENT OUESTIONS FOR CCE>Q 28

The table given below compares some properties of metals and non-metals. Write down the missing statements $(i)$ to $(iv)$ :

Metals	Non-metals
$(i)________$	$(i)$ Poor conductors of heat
$(ii)$ Malleable	$(ii)$ Are $________$
$(iii)$ Form positive ions	$(iii)$ $________$
$(iv)$ $________$	$(iv)$ Form acidic oxides

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 3 - Metals and Nonmetals>FORMATIVE ASSESSMENT OUESTIONS FOR CCE>Q 29

Metals are generally solid at room temperature

(say 25^{°} C)

. Name two metals which are liquid at room temperature.

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 3 - Metals and Nonmetals>FORMATIVE ASSESSMENT OUESTIONS FOR CCE>Q 30

Which allotrope of the non-metal carbon conducts electricity?

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 3 - Metals and Nonmetals>FORMATIVE ASSESSMENT OUESTIONS FOR CCE>Q 31

A metal with shining appearance reacts with hot water and also with dilute hydrochloric acid evolving hydrogen gas. Suggest giving a reason why this metal cannot be copper.

MEDIUM

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 3 - Metals and Nonmetals>FORMATIVE ASSESSMENT OUESTIONS FOR CCE>Q 32

Name the metal that combines slowly with cold water but at the higher temperature, the reaction is fast. Write balanced chemical equations to represent the two reactions.

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