Questions

Washing soda is used ______.

I. for removing permanent hardness of water

II. for disinfecting drinking water

III. as a cleaning agent for domestic purpose

Find the potential energy gained by a body of mass 60 kg, if it is raised by 12 m. (use g = 10 m/s2)

Fill in the blank with the most appropriate option.

18 volts = ___ x 3 ohms

Isotopes have ______.

I. similar physical quantities and different chemical properties

II. different physical properties

III. similar chemical properties

Ionic compounds ______.

I. have high boiling point

II. have high melting point

III. conduct electricity in solution

The minimum forest cover to maintain ecological balance in the plains is

The Gram Panchayat is composed of which of the following?

I. The ward panchs

II. The sarpanch

III. The district collector

The power of _____________ is expressed in terms of a magnitude on a scale called Richter scale.