Which gas is used to extract energy from food in photosynthesis...? Mcqs

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Which gas is used to extract energy from food in photosynthesis...?

(A) O2 (Oxygen)
(B) CO2 (Carbon Dioxide)

(C) H2O (Water)
(D) N2 (Nitrogen)

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Radioactive isotope of Uranium used in Nuclear Bomb is ...?

(A) 92 U 235
(B) 92 U 234

(C) 92 U 233
(D) 92 U 238

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The horizontal rows of the periodic table are called ______...?

(A) Groups
(B) Periods

(C) Sets
(D) Matrices

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Which is a water purification technology that uses a semipermeable membrane to remove ions, molecules and larger particles from drinking water...?

(A) Filtration
(B) Reverse Osmosis (RO)

(C) Sedimentation
(D) Distillation

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What is bacteria that helps make yogurt ...?

(A) Escherichia Coli
(B) Staphylococcus aureus

(C) Lactobacillus
(D) All of these.

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Following are the constituent of polluted air cause of Acid rain except...?

(A) Argon
(B) Nitrogen

(C) Sulphur dioxide
(D) Oxygen

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When red litmus paper dipped basic, its colour change to ____...?

(A) Blue
(B) Pink

(C) Red
(D) Dark

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Which one of the following gases is readily soluble in water at room temperature...?

(A) Chlorine
(B) Nitrogen

(C) Ammonia
(D) Carbon dioxide

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What is the range of a clinical thermometer on the Fahrenheit scale...?

(A) 0°F to 100°F
(B) 95°F to 108°F

(C) 32°F to 212°F
(D) 50°F to 150°F

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Nucleus of an atom was discovered by___________...?

(A) Goldstein
(B) James Chadwick

(C) J J Thomson
(D) Rutherford

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