Metals and Non Metals Class 10 MCQ Test. We covered all the Metals and Non Metals Class 10 MCQ Test in this post for free so that you can practice well for the exam.
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Metals and Non Metals Class 10 Objective MCQ Test for Students
The most commonly used substance in fluorescent tubes are:
A. Sodium Oxide and Argon
B. Sodium Vapour and Neon
C. Mercury Vapour and Argon
D. Mercuric Oxide and Neon
Option c – Mercury Vapour and Argon
Which one of the following metals is accessed in the native state?
A. Aluminium
B. Gold
C. Chromium
D. Zinc
Option b – Gold
Which one of the following is the correct sequence of the given substances in the decreasing order of their densities?
A. Steel > Mercury > Gold
B. Gold > Mercury > Steel
C. Steel > Gold > Mercury
D. Gold > Steel > Mercury
Option b – Gold > Mercury > Steel
Of how many carats is pure gold?
A. 22
B. 24
C. 28
D. 20
Option b – 24
The main constituents of pearl are:
A. Calcium Carbonate Magnesium Carbonate
B. Aragonite and Conchiolin
C. Ammonium Sulphate and Sodium Carbonate
D. Calcium Oxide and Ammonium Chloride
Option b – Aragonite and Conchiolin
Pearl is mainly constituted of:
A. Calcium Oxalate
B. Calcium Sulphate
C. Calcium Carbonate
D. Calcium Oxide
Option c – Calcium Carbonate
What are Rubies and Sapphires chemically known as?
A. Silicon Dioxide
B. Aluminium Oxide
C. Lead Tetroxide
D. Boron Nitride
Option b – Aluminium Oxide
These days yellow lamps are frequently used as street lights. Which one of the following is used in these lamps?
A. Sodium
B. Neon
C. Hydrogen
D. Nitrogen
Option a – Sodium
Sodium Vapour Lamp is usually used as street light because
A. These are cheap
B. Light from this is monochromatic and will not split through water droplets
C. It is pleasing to the eyes
D. It is brightly illuminating
Option b – Light from this is monochromatic and will not split through water droplets
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