Which of the following is an example of a chemical reaction...?

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Accepted Answer

Leaves changing colors in the fall

Which of the following is an example of a chemical reaction...? Mcqs

Which of the following is an example of a chemical reaction...?

(A) Water freezing into ice

(B) Sand settling to the bottom of a pool

(C) Leaves changing colors in the fall

(D) A rock rolling down a hill

Which of the following is not a unit of pressure...?

(A) Pascal

(B) Bar

(C) Atmosphere

(D) Newton

Which gas is used by the green plants to make their food...?

(A) O2

(B) CO2

(C) CO

(D) N2

Permissible noise level at Residential area during night time is:...?

(A) 45 dB

(B) 55 dB

(C) 75 dB

(D) 80 dB

Function of restriction enzymes...?

(A) Join DNA fragments

(B) Cut the DNA

(C) Replicate the DNA

(D) Unwind the DNA

Burning of wood is a ______ change....?

(A) Chemical

(B) Physical

(C) Temporary

(D) Both A and B

Hydrogen peroxide (H2O2)______________...?

(A) helps line up cell proteins

(B) is poisonous to tissues

(C) is often needed as a catalyst

(D) aids in oxidation of glucose

The correct age of solar system is approximately __________...?

(A) 4.3 Billion years

(B) 4.4 Billion years

(C) 4.5 Billion years

(D) None of these

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

(A) Small

(B) Medium

(C) Equal

(D) Large

Liver uses which vitamin for creating new Red Blood cells...?

(A) B12

(B) B6

(C) A

(D) K

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Which of the following is an example of a chemical reaction...? Mcqs

Which of the following is an example of a chemical reaction...?

(A) Water freezing into ice (B) Sand settling to the bottom of a pool

(C) Leaves changing colors in the fall (D) A rock rolling down a hill

Which of the following is not a unit of pressure...?

(A) Pascal (B) Bar

(C) Atmosphere (D) Newton

Which gas is used by the green plants to make their food...?

(A) O2 (B) CO2

(C) CO (D) N2

Permissible noise level at Residential area during night time is:...?

(A) 45 dB (B) 55 dB

(C) 75 dB (D) 80 dB

Function of restriction enzymes...?

(A) Join DNA fragments (B) Cut the DNA

(C) Replicate the DNA (D) Unwind the DNA

Burning of wood is a ______ change....?

(A) Chemical (B) Physical

(C) Temporary (D) Both A and B

Hydrogen peroxide (H2O2)______________...?

(A) helps line up cell proteins (B) is poisonous to tissues

(C) is often needed as a catalyst (D) aids in oxidation of glucose

The correct age of solar system is approximately __________...?

(A) 4.3 Billion years (B) 4.4 Billion years

(C) 4.5 Billion years (D) None of these

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

(A) Small (B) Medium

(C) Equal (D) Large

Liver uses which vitamin for creating new Red Blood cells...?

(A) B12 (B) B6

(C) A (D) K

MCQs Categories

Best of Luck

From ShineGk.com

Share our website's link

(A) Water freezing into ice

(B) Sand settling to the bottom of a pool

(C) Leaves changing colors in the fall

(D) A rock rolling down a hill

(A) Pascal

(B) Bar

(C) Atmosphere

(D) Newton

(A) O2

(B) CO2

(C) CO

(D) N2

(A) 45 dB

(B) 55 dB

(C) 75 dB

(D) 80 dB

(A) Join DNA fragments

(B) Cut the DNA

(C) Replicate the DNA

(D) Unwind the DNA

(A) Chemical

(B) Physical

(C) Temporary

(D) Both A and B

(A) helps line up cell proteins

(B) is poisonous to tissues

(C) is often needed as a catalyst

(D) aids in oxidation of glucose

(A) 4.3 Billion years

(B) 4.4 Billion years

(C) 4.5 Billion years

(D) None of these

(A) Small

(B) Medium

(C) Equal

(D) Large

(A) B12

(B) B6

(C) A

(D) K