List of practice Questions

Sleeping sickness is caused by:
The enzyme 'pepsin' is inactive in stomach without the presence of :
Contraction of the protoplast of a plant cell as a result of loss of water from the cell is :
Two cell organelles who has its own genetic material:
Plasma contains:
What happens; When dilute 'HCl' is added to granulated 'Zn' ?
Among the following, what is used to check the rate of transpiration?
New plants grown up by using the tip of a plant is known as:
Respiration is a :
Bleaching Powder is mixed in drinking water. Why?
Which acid is produced in our stomach ?
A Solution turns blue Litmus red, its pH is likely to be :
A Solution reacts with egg-shell to give CO$_2$ gas, the Solution contains :
Which metals are kept in kerosene?
Conductivity of metal's is due to :
Rutherford's alpha-particle scattering experiment was responsible for the discovery of:
In which conditions rusting of iron takes place in presence of:
The atomic number of an element is the same as the number of :
On increasing the temperature, the resistance of conductors:

The current in $7.2 \, \Omega$ resistor is :

The reading of the voltmeter is :

Which of the following does not represent electric power in the circuit ?
Two identical resistance wires are first connected in series and then in parallel in an electric circuit. The ratio of heat produced in the two cases will be :
Rancidity is due to oxidation of:
The reaction $ \text{CuSO_4 + \text{Zn} \rightarrow \text{ZnSO}_4 + \text{Cu} $ is an example of a:}