What is the chemical formula for Sodium carbonate _______ ...? Mcqs

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What is the chemical formula for Sodium carbonate _______ ...?

(A) Na3CO2
(B) CNa2O3

(C) Na2CO3
(D) Na3CO3

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In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ...?

(A) Chemical Reaction
(B) Nuclear reaction

(C) Fission nuclear reaction
(D) Fusion nuclear reaction

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The observable traits of an individual are:...?

(A) Genotype
(B) Phenotype

(C) Alleles
(D) None of these

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Change of state form liquid to solid is _________...?

(A) Boiling
(B) Freezing

(C) Evaporation
(D) None of these

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The chemical name of quartz is:...?

(A) Silicon Dioxide
(B) Stannous Oxide

(C) Aluminium Oxide
(D) None

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Binocular work on the principle of which one of the following...?

(A) Refraction of Light
(B) Diffraction of Light

(C) Total Internal Reflection of Light
(D) Transmission of Sound

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Places where the temperature of air is below freezing point of the water, the precipitation will be in the form of __________ ...?

(A) Snow
(B) Lightning

(C) Hailstorms
(D) Thunders

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Organisms that eat all the dead and waste products and returning useful elements to soil and environment are known as...?

(A) Decomposers
(B) Producers

(C) Consumers
(D) None

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Which one of the following is a non-luminous object(s)...?

(A) Sun
(B) Stars

(C) Moon
(D) Fireflies

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Animal that eat the primary and secondary consumers are called...?

(A) Tertiary Consumer
(B) Primary Consumer

(C) Secondary Consumer
(D) None

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