The element required for solar energy conversion is:...? Mcqs

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The element required for solar energy conversion is:...?

(i) Silicon
(ii) Germanium

(iii) Uranium
(iv) None of these

Latest MCQs

Which of the following is the least polluted gas...?

(i) Carbon
(ii) Nitrogen

(iii) Chlorine
(iv) None of these

Latest MCQs

When a gas turns into a liquid the process is called:...?

(i) Condensation
(ii) Evaporation

(iii) Deposition
(iv) Sulimation

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Nitrogen boils at a temperature of:...?

(i) -96 °C
(ii) -196 °C

(iii) -296 °C
(iv) -310 °C

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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

Latest MCQs

Chemical formula of baking soda is ______...?

(i) Na2CO3
(ii) K2CIO3

(iii) Na2SO4
(iv) NaHCO3

Latest MCQs

Plants exhale at night time which gas...?

(i) O2
(ii) H20

(iii) Co1
(iv) CO2

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Which of the following is not a chemical reaction...?

(i) Burning of a paper
(ii) Conversion of Water into stream

(iii) Digestion of food
(iv) Burning of coal

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How many neutrons are in hydrogen...?

(i) 0
(ii) 1

(iii) 2
(iv) 3

Latest MCQs

Which is used as an electrode in the dry cell:...?

(i) Lead
(ii) Graphite

(iii) Molybdenum
(iv) None of these

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