Which isotope is used to investigate carbon uptake and biochemical pathways in plants...? Mcqs

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Which isotope is used to investigate carbon uptake and biochemical pathways in plants...?

(A) Phosphorus - 32
(B) Carbon - 14

(C) Lead - 210
(D) Nitrogen - 15

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Solution is a mixture of ______...?

(A) Mixture and Compound
(B) Element and Mixture

(C) Solvent and Compound
(D) Solute and Solvent

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"A chemical compound always contains the same elements combined together in the same proportion or ratio" is the statement of ____...?

(A) Law of Multiple Proportions
(B) Law of Conservation of Mass

(C) Law of Reciprocal Proportions
(D) Law of Constant Composition

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What percentage of earth’s water supply is fresh water___________...?

(A) 3%
(B) 5%

(C) 21%
(D) None of these

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Lenses form images through ______...?

(A) Dispersion
(B) Diffraction

(C) Refraction
(D) Reflection

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A plane mirror forms an image that is ____...?

(A) Real and Inverted
(B) Virtual and Inverted

(C) Real and Upright
(D) Virtual and Upright

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Select the correct sequence of biological organization...?

(A) Atom → Cell → Tissue → Molecule → Organ
(B) Atom → Tissue → Cell → Molecule → Organ

(C) Atom → Molecule → Cell → Tissue → Organ
(D) Atom → Cell → Molecule →Tissue → Organ

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Which formula helps in the determination of the maximum number of electrons present in an orbit...?

(A) 2n^2
(B) 2n

(C) n^2
(D) n/2

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Quality rating of deisel is called...?

(A) Octane
(B) Cetane

(C) Protane
(D) Butane

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Water is 50 times more viscous than ____________ ...?

(A) Oil
(B) Alcohol

(C) Gases
(D) Solid

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