GENERAL SCIENCE MCQ PART – 1 FOR RAILWAY NTPC EXAM 2019
Important General science MCQ Part – 1 is discussed here which is important for upcoming Railway NTPC & Railway JE Exam 2019. Download Our GENERAL SCIENCE MCQ Capsule Free Of Cost….
1. The term ‘carat’ is used to express purity of gold. The purest form of gold is
(A)18 carats
(B)20 carats
(C)22 carats
(D)24 carats
2. The combustible material on the tip of a safety match stick is
(A)Antimony sulphide
(B)Phosphorus
(C)Manganese dioxide
(D)Sulphur
3.Which of the following reactions cannot be used for the formation of salts?
(A) The reaction between a metal oxide and an acid
(B) The reaction between an acid and a base
(C) The reaction between a non-metal and oxygen
(D) The reaction between an acid anhydride and a metal
4.Which of the following acids is used as a dehydrating and drying agent?
(A)Acetic
(B)Hydrochloric
(C)Nitric
(D)Sulphuric
5.Which of the following are produced by the electrolysis of brine?
(A)Chlorine and sodium
(B)Chlorine and sodium hydroxide
(C) Chlorine, hydrogen and sodium hydroxide
(D) Hydrogen and chloride
6. Why is it difficult to breathe at higher altitudes?
(a)Due to low air pressure
(b)Due to low temperature
(c) Due to ozone
(d)Due to high humidity
7. The density of gas is maximum at
(a) Low temperature low pressure
(b)Low temperature high pressure
(c)High temperature low pressure
(d)High temperature high pressure
8. Velocity of sound in air does not change with the change of
(a)Temperature of air
(b)Pressure of air
(c)Moisture content in air
(d)Wind in the direction of propagation of sound
9. The weakest of all fundamental forces is
(a)Gravitational force
(b)Electrostatic force
(c)Magnetic force
(d)Nuclear force
10. A falling drop of rain water acquires the spherical shape due to
(a)Viscosity
(b)Surface Tension
(c)Atmospheric pressure
(d)Gravitational force
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