Class 10 Science Chapter 3 MCQ

Class 10 Science Chapter 3 MCQ (Multiple Choice Questions) of Metals and Non-Metals. These sets of MCQ Online Tests contain more than 100 questions with suitable explanation and answers.

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Class 10 Science Chapter 3 MCQ for 2020-2021

Class: 10Science
Chapter: 3Multiple Choice Questions (MCQ) Tests

Class 10 Science Chapter 3 MCQ with Answers

Class 10 Science chapter 3 Metal and non-metals MCQ questions online test are given below for practice. These MCQs are prepared from NCERT Books only. Answers as well as explanation of each answers are also given just below the questions. Questions are useful for all board like CBSE, UP Board, MP Board, and other board who are following NCERT Textbooks 2020-2021 for their final exams.


Consider the given statements and choose the incorrect one:

[A]. Malleability is an important characteristic property of metals.
[B]. Gold, iron, silicon is the most ductile metal.
[C]. Aluminium foils are used for packing food items like biscuits, chocolates.
[D]. Gold and silver metals are some of the best malleable metals.

Reaction between X and Y, forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z?

[A]. Has high melting point
[B]. Has low melting point
[C]. Conducts electricity in molten state
[D]. Occurs as solid


An alloy is

[A]. An element
[B]. A compound
[C]. A homogeneous mixture
[D]. A heterogeneous mixture

Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?

[A]. Na
[B]. Fe
[C]. Cr
[D]. Hg

Silver articles become black on prolonged exposure to air. This is due to the formation of

[A]. Ag3N
[B]. Ag2O
[C]. Ag2S
[D]. Ag2S and Ag3N

Which of the following statement is or are correct?

[A]. Metals usually displace hydrogen from dilute acids.
[B]. Metals react with dilute hydrochloric acid to give metal chlorides and hydrogen gas.
[C]. Magnesium reacts quite rapidly with dilute hydrochloric acid forming magnesium chloride and hydrogen gas.
[D]. All the above


Which of the following are not ionic compounds?

[A]. KCl, HCl
[B]. HCl, CCl4
[C]. CCl4, NaCl
[D]. KCl, CCl4

The composition of aqua-regia is

[A]. Dil. HCl (3) : Conc. HNO3 (1)
[B]. Conc.HCl (3) : Dil. HNO3 (1)
[C]. Conc.HCl (3) : Conc.HNO3 (1)
[D]. Dil.HCl (3) : Dil.HNO3 (1)

Consider the following statements, choose the incorrect one:

[A]. Gold being least reactive metal has been placed at the bottom in the series.
[B]. If a metal is below hydrogen in the activity series, then it will easily react with water and acids to produce hydrogen gas.
[C]. Potassium is the most reactive metal here, so it has been placed at the top in the reactivity series.
[D]. All the metals placed below hydrogen in the reactivity series lose electrons less readily than hydrogen.

The ability of metals to be drawn into thin wire is known as:

[A]. Ductility
[B]. Malleability
[C]. Sonorousity
[D]. Conductivity

Hydrogen gas is not evolved when a metal reacts with nitric acid. Why?

It is because HNO3 is a strong oxidising agent. It oxidises the H2 produced to water and itself gets reduced to any of the nitrogen oxides (N2O, NO, NO2). But magnesium (Mg) and manganese (Mn) react with very dilute HNO3 to evolve H2 gas.

Why does Magnesium float on the surface of hot water?

Magnesium reacts with hot water to form magnesium hydroxide and hydrogen. It starts floating due to the bubbles of hydrogen gas sticking to its surface.

Why do ionic compounds have high melting and boiling points?

This is because a considerable amount of energy is required to break the strong inter-ionic attraction.

Why are the sulphides and carbonates converted into their oxides during the extraction of metal?

It is easier to obtain a metal from its oxide, as compared to its sulphides and carbonates. Therefore, prior to reduction, the metal sulphides and carbonates must be converted into metal oxides.

All the Multiple Choice questions are prepared by the subject expert. Only important questions for board examinations are included here with answer and explanation. There are four choices with one correct choice. About 25 sets of MCQ online tests are given to use free.

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