List of practice Questions

Write the chemical equation for the method of obtaining bleaching powder and its two uses.
On which factors does the magnetic field due to a current-carrying solenoid depend?
What is Fleming's Left Hand Rule?
On which factors does the force acting on a current-carrying conductor placed in a magnetic field depend?
How many wires are used in domestic electrical circuits? Write the names of each and their colours of insulation.
Explain the process of combustion and write chemical equations of two examples of it.
Which one of the following is an example of a producer in an ecosystem?
Which character(s) of the Pea plant has been studied by Mendel in his experiments?
State two natural phenomena of scattering of light.
How many types of defects of vision are there? Write down their names.
Write down two uses each of convex mirror and convex lens.
Draw a ray diagram of the image of an object formed by a concave lens.
How are voltmeter and ammeter joined on passing current in a resistor?
A refrigerator of 500 watts is used for 12 hours every day. How much kilowatt-hour energy is consumed by the refrigerator for 30 days?
The process for obtaining oxide from carbonate ore by heating at a high temperature in a limited supply of air is:
Chemical reaction CuSO$_4$ + Fe $\rightarrow$ FeSO$_4$ + Cu is:
The autotrophic mode of nutrition requires:
Which of the following is a plant hormone?
The anther contains:
Reproduction by means of regeneration occurs in:
The gap between two neurons is called a/an:
Two wires of resistances R and 2R are joined first in series and then in parallel. If the total resistances in the two conditions are \( R_1 \) and \( R_2 \) respectively, then \( R_1 / R_2 \) will be:
Functional group in propanal is:
The pH value of a neutral solution is:
The ketone in the following is: