Answer :

(a) False

The metal which is liquid at room temperature is Mercury(Hg). Another metal called Gallium also exists as liquid at room temperature.

(b) False

Coal is made up of carbon. Carbon is a nonmetal. It is non-malleable and non-ductile; hence, coal cannot be drawn into wires.

(c) False

Metals react with dilute acids to form metallic salts and hydrogen gas. For example, zinc reacts with dilute hydrochloric acid to form zinc chloride and hydrogen gas.

(d) True

Sodium is a very reactive metal. It can even react with the moisture in the air. The reaction of sodium with water is exothermic. It produces a lot of heat.

(e) False

Copper is less reactive than zinc. It is placed below zinc in the reactivity series of metals. Hence, copper cannot displace zinc from zinc sulphate solution.

(f) True

Rust is a chemically known as iron oxide. Metal oxides are basic in nature. Since, rust is a metal oxide, it will be basic in nature.

(g) False

Metals react with water to produce hydrogen gas. For example, sodium reacts with water to form sodium hydroxide and hydrogen gas.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

The least reactivLakhmir Singh & Manjit Kaur - Science

The element Z burLakhmir Singh & Manjit Kaur - Science

Which of the follLakhmir Singh & Manjit Kaur - Science

Which among the fLakhmir Singh & Manjit Kaur - Science

When a vessel is Lakhmir Singh & Manjit Kaur - Science

You are given a sLakhmir Singh & Manjit Kaur - Science

Which of the follLakhmir Singh & Manjit Kaur - Science

An element burns Lakhmir Singh & Manjit Kaur - Science

The metal X reactLakhmir Singh & Manjit Kaur - Science