Q21) Which one of the following organ is affected by Malaria:
A) Heart
B) Lungs
C) Kidney
D) Spleen

Q22) Which of the following substance is used for Artificial Rain:
A) Silver Bromide
B) Ammonium Nitrate
C) Silver Iodide
D) All of the Above

Q23) Which one of the following gas is known as Noble Gas:
A) Hydrogen
B) Oxygen
C) Helium
D) Carbon Dioxide

Q24) Which one of the following device is used for detecting lie:
A) Polygraph
B) Pyrometer
C) Gyroscope
D) Kymograph

Q25) ELISA test is performed to test:
A) Diabetes
B) Tuberculosis
C) Aids
D) Typhoid

Q26) A man, who doesn’t know when to stop eating, is suffering from:
A) Bulimia
B) Diabetes
C) Anorexia
D) Hyperacidity

Q27) Which of the following device is used for converting Alternative Current into Direct Current:
A) Dynomo
B) Motor
C) Transformer
D) Rectifier

Q28) Octane number is used for measuring the quality of:
A) Edible Oil
B) Petrol
C) Kerosene Oil
D) Perfumed Oil

Q29) The chemical name of Baking Soda is:
A) Sodium Chloride
B) Sodium Sulphate
C) Sodium Bicarbonate
D) Sodium Hydroxide

Q30) The sky appears blue due to its:
A) Scattering of Light
B) Diffraction of Light
C) Refraction of Light
D) Reflection of Light