Question

science ncert chapter 4 book one two word question class 8
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Answer 1

Answer:

1. Which of the following metals does not react even with steam.?

A. Silver

B. Iron

C. Calcium

D. Sodium

Answer: (A) Silver

Solution: The reactivity of silver is so low that it doesn’t react even with steam.

2. Identify the non-metal which exists in a liquid state in room temperature 25∘C.

A. Aluminium

B. Mercury

C. Iodine

D. Bromine

Answer: (D) Bromine

Solution: Amongst the given options, mercury and aluminium are metals while iodine and bromine are non-metals. Bromine is a reddish-brown liquid at room temperature.

Explanation:

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