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

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

(A) 0 °C
(B) 37 °C

(C) – 196 °C
(D) None of these

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CU is the symbol of which element of the periodic table:...?

(A) Chromium
(B) Copper

(C) Carbon
(D) None of these

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Vaccination was discovered by...?

(A) Galileo
(B) Edward Jenner

(C) Baird
(D) Roentgen

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Abdul Qadeer Khan died on ______...?

(A) 09 October 2021
(B) 10 October 2021

(C) 11 October 2021
(D) 13 October 2021

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A chemical solution has 8% acid the acid is 15 ml the total volume of solution is...?

(A) 179.5 ml
(B) 180.5 ml

(C) 187.5 ml
(D) None of these

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James Chadwick is known for his discovery...?

(A) Proton
(B) Neutron

(C) Electron
(D) None of these

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splitting of water into hydrogen and oxygen is an example of ______...?

(A) Evaporation
(B) Condensation

(C) Decomposition
(D) Sublimation

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Which is the oldest freezing method:...?

(A) Contact freezing
(B) Flash freezing

(C) Brine freezing
(D) None of these

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Chemical formula of baking soda is ______...?

(A) Na2CO3
(B) K2CIO3

(C) Na2SO4
(D) NaHCO3

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The process of emoving water in the form of vapour from theleaves is called:...?

(A) Nutrition
(B) Respiration

(C) Perspiratin
(D) Transpiration

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