An element that does not occur in nature but can be produced artificially is__________...? Mcqs

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An element that does not occur in nature but can be produced artificially is__________...?

(A) Plutonium
(B) Uranium

(C) Radium
(D) Thorium

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Strength of intermolecular forces from ionic or covalent bond is _______...?

(A) Weaker
(B) Stronger

(C) Equal
(D) None of above

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The materials required for photosynthesis are _______...?

(A) Water (H2O) and Oxygen (O2)
(B) Water (H2O) and Carbon Dioxide (CO2)

(C) Carbon Dioxide (CO2) and Light Energy
(D) Glucose (C6H12O6) and Oxygen (O2)

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Chemical used to kill rats and mice are ...?

(A) Insecticides
(B) Rodenticides

(C) Fungicides
(D) Herbicides

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Disolved oxygen (DO) in water should be...?

(A) 400 to 800 ppm
(B) 4000 to 8000 ppm

(C) 0.4 to 0.5 ppm
(D) 4 to 5 ppm

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It is possible to recognize a person in the dark by simply hearing his unique voice . It is because of the_______...?

(A) pitch
(B) Frequency

(C) Time period
(D) Quality

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In the periodic table, columns is considered to be a ____...?

(A) Periods
(B) Groups

(C) Zigzag
(D) Diagonal

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Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________...?

(A) ionic substances
(B) metallic substances

(C) molecular solids
(D) covalent network solids

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Cell membrane is composed of _____ layer....?

(A) Single
(B) Double

(C) Triple
(D) None

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In constructive reaction _____ molecules are formed....?

(A) Small
(B) Medium

(C) Equal
(D) Large

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