Physics, asked by luvsaini76, 9 hours ago

Guys please answer fast​

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Answers

Answered by shiksha78864
2

Explanation:

a.)False.

b.)True.

c.)False.

d.)False

Answered by tarutrivedi3
0

Answer:

a) False

a) Falseb) True

a) Falseb) Truec) False

a) Falseb) Truec) Falsed) False

Explanation:

a) Generally non-metal do not react with acids. This statment is true because, when a substance reacts with acid it provides electrons to the H + ions but non-metals accept electrons by themselves. Hence, non-metals normally do not react with dilute acids.

b) As a part of the alkali metal group in the periodic table, sodium is highly reactive and is never found pure in nature. It tarnishes easily and has a low melting point and density. Sodium is so reactive because they lose their valence electron very easily.

c) Copper displaces zinc from zinc sulphate solution. This statement is not true because copper is less reactive than zinc and hence cannot displace zinc from its solution.

d) Since coal is non-metal, it lacks the property like malleability and ductility. ... The metals like copper, aluminium, gold, silver are highly ductile materials and can be easily drawn into wires. So, the statement “Coal can be drawn into wires” is false.

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