Metals and Non-Metals Class 10 MCQ Quiz – Test Your Knowledge!

2 mL each of concentrated HCl, HNO_3, and a mixture of concentrated HCl and concentrated HNO₃ in the ratio of 3:1 were taken in test tubes labeled as A, B, and C. A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C respectively. The metal could be

Which one of the following correctly represents Sodium oxide?

Galvanisation is a process of coating iron articles with a layer of zinc to prevent the iron from rusting.

The iron is protected even if the zinc coating is scratched and the iron is exposed.

Which of the following is true about how zinc prevents the rusting of iron?

1. 1. A galvanized iron article does not undergo oxidation.

1. 1. The zinc coating prevents contact of iron with air.

1. 1. Zinc undergoes corrosion more easily than iron.

What happens when calcium is treated with water?

1. 1. It does not react with water

1. 1. It reacts violently with water

1. 1. It reacts less violently with water

1. 1. Bubbles of hydrogen gas formed stick to the surface of the calcium

An element ‘M' has 50% of the electrons filled in the 3rd shell as in the 2nd shell. The atomic number of ‘M’ is:

Although metals form basic oxides, which of the following metals forms an amphoteric oxide?

Sodium comes after potassium in the reactivity series, so sodium is _____.

If copper is kept open in the air, it slowly loses its shining brown surface and gains a green coating. It is due to the formation of

The table shown below gives information about four substances: A, B, C, and D.

Identify ionic compounds from the above-given substances.

• • Assertion: Rusting of Iron is endothermic in nature.

• • Reason: As the reaction is slow, the release of heat is barely evident.

The metal X does not react with cold water but floats on hot water with the formation of colorless bubbles. Which of the following represents metal X.

A scientist is attempting to represent an ionic bond between calcium and chlorine. The figure below shows the progress he has made so far.

What should be the next step in his representative of the ionic bond?

Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?

1. 1. Au

1. 1. Cu

1. 1. Na

1. 1. K

Which of the following are not ionic compounds?

1. 1. KCl

1. 1. HCl

1. 1. CCl₄

1. 1. NaCl

On placing a copper coin in a test tube containing green ferrous sulphate solution, it will be observed that the ferrous sulphate solution