A reaction in which a new single compound is formed by the union of two or more substances is known as...? Mcqs

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A reaction in which a new single compound is formed by the union of two or more substances is known as...?

(A) Decomposition Reaction
(B) Oxidation Reaction

(C) Addition Reaction
(D) Neutralization

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Transportation of water takes place through continuous tubes in roots, stem and leaves are called as...?

(A) Xylem
(B) Phloem

(C) Stomata
(D) Cambium

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The law of independent assortment shows...?

(A) Equal chances of gametes to receive genes
(B) Dominance of one gene over another

(C) Inheritance of acquired traits
(D) None of these

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First Atomic theory was proposed by...?

(A) John Dalton
(B) E.Rutherford

(C) De Broglie
(D) D.I.Mendeleef

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The blind spot is located at the ___________ of the eye ...?

(A) pupil
(B) vitreous humor

(C) aqueous humor
(D) optic disc

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Heat is the form of _____...?

(A) Pressure
(B) Weight

(C) Energy
(D) All

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______________ is used for measuring velocity...?

(A) Speedometer
(B) Anemometer

(C) Odometer
(D) Hygrometer

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Mass of Earth is _____...?

(A) 6.0 x 10^23 kg
(B) 6.0 x 10^24 kg

(C) 6.0 ´ 10^25 kg
(D) 6.0 ´ 10^26 kg

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Which gas can turn lime water milky...?

(A) O2
(B) NO2

(C) CO2
(D) N2

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The Genetic constitution of a trait is called _____...?

(A) Genotype
(B) Phenotype

(C) Genome
(D) Phenyl

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