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 27

MEDIUM

10th CBSE

IMPORTANT

Earn 100

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?

Important Questions on Metals and Nonmetals

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.

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 3 - Metals and Nonmetals>FORMATIVE ASSESSMENT OUESTIONS FOR CCE>Q 33

What will happen if a solution of copper sulphate is stored in a vessel made of iron?

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 3 - Metals and Nonmetals>FORMATIVE ASSESSMENT OUESTIONS FOR CCE>Q 34

Gold can be hammered into sheets. Therefore, it is _____. (malleable/ductile)

EASY

10th CBSE