Which statement is correct about Noble gases?

D. Their oxidation state is zero

B. They have incomplete outer electron shells

C. They readily form compounds with metals

D. Their oxidation state is zero

Which of the following are examples of non-metallic elements?

A. Carbon, hydrogen, oxygen, nitrogen

B. Iron, copper, zinc, aluminium

C. Sodium, potassium, calcium, magnesium

D. Silver, gold, platinum, mercury

Which of the following best describes chlorine?

D. A yellowish crystalline solid

Everyday Science · Atoms, Elements & Compounds · page 6 of 8

Non-metal Elements MCQs with Answers

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Non-metal Elements MCQs (51–60)

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Past paper MCQs in this chapter · See all past papers

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51.
Silicon can be obtained from?
Correct Answer: A. Sand
One-liner
Silicon can be obtained from sand, which is primarily composed of silicon dioxide (SiO₂).
52.
Which statement is correct about Noble gases?
Correct Answer: D. Their oxidation state is zero
One-liner
Noble gases have an oxidation state of zero because their outermost electron shells are completely filled, making them chemically inert.
53.
Which element has the highest electronegativity?
Correct Answer: B. Fluorine
One-liner
Fluorine is the element with the highest electronegativity.
54.
Which of the following are examples of non-metallic elements?
Correct Answer: A. Carbon, hydrogen, oxygen, nitrogen
One-liner
Non-metallic elements include Carbon, hydrogen, oxygen, and nitrogen, which are essential building blocks of life and lack typical metallic properties.
55.
Which element is used to make computer chips?
Correct Answer: A. Silicon
One-liner
Computer chips are primarily made from Silicon, a semiconductor element.
56.
Past Paper MCQ
Which of the following is used in pencils as a lubricant?
Correct Answer: D. Graphite
One-liner
Graphite is used in pencils as a lubricant because its layered structure allows sheets to slide over each other easily, leaving marks on paper.
57.
Which of the following best describes chlorine?
Correct Answer: A. A greenish poison gas
One-liner
Chlorine is best described as a greenish poison gas.
58.
What is the classification of Sulphur?
Correct Answer: B. Non-metal
One-liner
Sulphur is classified as a non-metal element.
59.
Which of the following is the most active chemically?
Correct Answer: C. Fluorine
One-liner
Fluorine is the most chemically active element among all halogens due to its highest electronegativity and small atomic size.
60.
Noble gases are also known as?
Correct Answer: C. Inert gases
One-liner
Noble gases are also known as inert gases because they are chemically unreactive due to their complete valence electron shells.

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Non-metal Elements MCQs with Answers

Non-metal Elements MCQs (51–60)

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