Default Title

Question (31)

QN001031

Which non-metal helps in the healing of wounds when used as tincture iodine?

(A) Chlorine
(B) Sulfur
(C) Iodine
(D) Carbon

Correct Answer: C

Explanation:

Tincture iodine acts as an antiseptic.

Link:

Report Error

Question (32)

QN001032

Carbon dioxide is used in fire extinguishers because it:

(A) Supports combustion
(B) Does not support combustion
(C) Is highly reactive
(D) Produces oxygen

Correct Answer: B

Explanation:

Carbon dioxide helps control fire.

Link:

Report Error

Question (33)

QN001033

Which non-metal is essential for maintaining life on Earth through respiration?

(A) Chlorine
(B) Oxygen
(C) Sulfur
(D) Iodine

Correct Answer: B

Explanation:

Oxygen is necessary for respiration.

Link:

Report Error

Question (34)

QN001034

Which of the following is a conceptual application of chlorine in society?

(A) Used in making jewellery
(B) Used for water purification
(C) Used in electrical wiring
(D) Used in rust prevention

Correct Answer: B

Explanation:

Chlorine is widely used to purify water.

Link:

Report Error

Question (35)

QN001035

Which non-metal plays a major role in the nitrogen cycle?

(A) Sulfur
(B) Chlorine
(C) Nitrogen
(D) Carbon

Correct Answer: C

Explanation:

Nitrogen is part of the nitrogen cycle.

Link:

Report Error

Question (36)

QN001036

Which statement correctly explains why non-metals are important in daily life?

(A) All non-metals are used only in industries.
(B) Non-metals support essential life processes and useful applications.
(C) Non-metals are useful only as fuels.
(D) Non-metals have no role in living organisms.

Correct Answer: B

Explanation:

Non-metals are important in life and industry.

Link:

Report Error

Question (37)

QN001037

A student observes bubbles released during respiration experiments. The gas released mainly contains:

(A) Nitrogen
(B) Oxygen
(C) Carbon dioxide
(D) Hydrogen

Correct Answer: C

Explanation:

Respiration releases carbon dioxide gas.

Link:

Report Error

Question (38)

QN001038

Which non-metal is directly involved in breathing and energy release in cells?

(A) Oxygen
(B) Chlorine
(C) Sulfur
(D) Carbon

Correct Answer: A

Explanation:

Oxygen helps release energy from food.

Link:

Report Error

Question (39)

QN001039

Which non-metal is most closely associated with preventing infections in drinking water?

(A) Sulfur
(B) Carbon
(C) Chlorine
(D) Nitrogen

Correct Answer: C

Explanation:

Chlorine kills disease-causing germs.

Link:

Report Error

Question (40)

QN001040

Which conclusion best explains the importance of non-metals in everyday life?

(A) Non-metals are useful only in laboratories.
(B) Non-metals are essential for health, agriculture, industries, and daily activities.
(C) Non-metals are less important than metals.
(D) Non-metals have no role in environmental processes.

Correct Answer: B

Explanation:

Non-metals are important in many aspects of life.

Link:

Report Error

Question (31)

Which non-metal helps in the healing of wounds when used as tincture iodine?

Explanation:

Link:

Question (32)

Carbon dioxide is used in fire extinguishers because it:

Explanation:

Link:

Question (33)

Which non-metal is essential for maintaining life on Earth through respiration?

Explanation:

Link:

Question (34)

Which of the following is a conceptual application of chlorine in society?

Explanation:

Link:

Question (35)

Which non-metal plays a major role in the nitrogen cycle?

Explanation:

Link:

Question (36)

Which statement correctly explains why non-metals are important in daily life?

Explanation:

Link:

Question (37)

A student observes bubbles released during respiration experiments. The gas released mainly contains:

Explanation:

Link:

Question (38)

Which non-metal is directly involved in breathing and energy release in cells?

Explanation:

Link:

Question (39)

Which non-metal is most closely associated with preventing infections in drinking water?

Explanation:

Link:

Question (40)

Which conclusion best explains the importance of non-metals in everyday life?

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY