Enzymes catalyze chemical reaction by _____ the activation energy....? Mcqs

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Enzymes catalyze chemical reaction by _____ the activation energy....?

(A) Raising
(B) Lowering

(C) Maintaining
(D) Ignoring

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The process of separation of solute and solvent from the mixture is called...?

(A) Decantation
(B) Sedimentation

(C) Filtration
(D) Centrifugation

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The size of Covid-19 virus is______...?

(A) 25-30KB
(B) 28-30KB

(C) 29-30KB
(D) None of these

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Fertilizers are substances containing chemical elements such as manure or mixture of ______...?

(A) Lipids
(B) Carbohydrates

(C) Nitrates
(D) Proteins

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What is the Molecular Formula for Glucose _______ ...?

(A) C4H10O6
(B) C5H11O6

(C) C6H12O6
(D) S6H12O6

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_________ is anything that takes up space and has mass....?

(A) Matter
(B) Gravity

(C) Energy
(D) Plasma

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Medium sized kidney stones are removed by__________...?

(A) Dialysis
(B) Lithotripsy

(C) Excretion
(D) Laser

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Which of the following disorder is associated with inflammation of air passage ways...?

(A) Bronchitis
(B) Lung cancer

(C) Asthma
(D) Emphysema

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Which of the following explains the reason why there is no total eclipse of the sun...?

(A) Size of the earth in relation to that of moon
(B) Orbit of moon around earth

(C) Direction of rotation of earth around sun
(D) Area of the sun covered by the moon

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Heat capacity is the product of mass and _______...?

(A) Boiling point
(B) Freezing point

(C) Energy
(D) Specific heat of material

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