What is the temperature of “Liquid Nitrogen”...? Mcqs

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What is the temperature of “Liquid Nitrogen”...?

(i) 0 °C
(ii) 37 °C

(iii) – 196 °C
(iv) None of these

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James Chadwick is known for his discovery...?

(i) Proton
(ii) Neutron

(iii) Electron
(iv) None of these

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Soap and detergents remove the dirt from clothes due to...?

(i) Capillary action
(ii) Osmosis

(iii) Diffusion
(iv) Lowering of interfacial tension

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The formula of Quartz is:...?

(i) SiO2
(ii) Nacl

(iii) SiO4
(iv) None of these

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Bronze is an alloy of...?

(i) Copper and Bronze
(ii) Lead and Tin

(iii) Copper and Tin
(iv) None of these

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The reaction between an acid and a base is called neutralization reaction, product of this reaction is ______...?

(i) salt and water
(ii) acid solution

(iii) base solution
(iv) water

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The gases used in different types of welding would include:...?

(i) Oxygen and hydrogen
(ii) Oxygen, hydrogen, acetylene and nitrogen

(iii) Oxygen, acetylene and argon
(iv) Oxygen and acetylene

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Vaccination was discovered by...?

(i) Galileo
(ii) Edward Jenner

(iii) Baird
(iv) Roentgen

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Which planet revolves in Clockwise rotation around sun and seen from earth?...?

(i) Jupiter
(ii) Venus

(iii) Mars
(iv) None of these

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What are liquids that evaporate quickly, called...?

(i) Volatile
(ii) Viscous

(iii) Evaporative
(iv) None of these

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