List of practice Questions

What is the minimum distance of distinct vision for a normal human eye?
The non-metallic substance which is a good conductor of electricity.
Name the process shown in the diagram.
How does this process take place?
The two metals which can be cut with knife.
A sound is produced when certain metals are struck. Name this property of metals.
Name any two natural processes involved in formation of rainbow.
What does a small droplet of water act as?
What happens when copper reacts with concentrated nitric acid? What is the colour of the gas released during the reaction?
Write its balanced chemical equation.
Write the names of reactants and products.
The atom having smallest atomic mass.
The noble gas with the smallest atomic radius.
Time taken by the ball to reach the ground.
Velocity of the ball on reaching the ground.
The most electronegative atom.
What is done to prevent rusting of iron door of your house?
Name the launcher.
Name the law on which its working is based.
While going from left to right within a period, the size of the atom decreases.
For electric power transmission, copper or aluminium wire is used.
In some countries, ethanol is used as an additive to increase the efficiency of petrol.
Match the columns: Column ‘A’ Column ‘B’ Simple microscope used to observe minute objects
used to see distant objects
used for watch repair
Name the behaviour of water between its temperature from 0°C to 4°C.
Find the odd one out:
Loudspeaker, microphone, electric motor, magnet.
What is the reason for twinkling of stars?
CaO + H$_2$O $\rightarrow$ Ca(OH)$_2$ + Heat is an example of ................. reaction.