The statement is given below is incorrect. Write the correct statements :
Metals always form acidic oxides.
Important Questions on Model Test Paper-2
Statements given below are incorrect. Write the correct statements :
Carbon monoxide in the air causes acid rain.
Statements given below are incorrect. Write the correct statements :
Lightning conductor repels the electric charges in clouds.
Statements given below are incorrect. Write the correct statements :
Material medium is not necessary for the propagation of sound.
Statements given below are incorrect. Write the correct statements :
Friction increases with the increase in area of contact between two surfaces.
Statements given below are incorrect. Write the correct statements :
Pressure exerted by air increases with the increase in altitude.
Statements given below are incorrect. Write the correct statements :
The hormone insulin is secreted by thyroid gland.
Match the statements in Column A with those in Column B.
| Column A | Column B |
| (i) Permanent stoppage of menstruation | (a) dynamic friction |
| (ii) A liquefied gas used as household fuel | (b) anion |
| (iii) Friction between two sliding bodies | (c) dispersion |
| (iv) To and fro motion of a vibrating particle about its mean position | (d) seismograph |
| (v) A negatively charged ion | (e) petroleum gas |
| (vi) An instrument used for recording an earthquake | (f) graphite |
| (vii) The phenomenon of splitting of white light | (g) menopause |
| (viii) An allotrope of carbon which has lustre. | (h) vibration |
Mention the secondary sexual characteristics of males and females.
