Nature and Composition of Matter: MCQ Test
25 questions · pick one option for each · submit when you finish to see your score and the correct answers.
Question 1 of 25
Which of the following is a compound?
- AAir
- BMercury
- Cozone
- DWater
Question 2 of 25
In which of the following is a single type of atom found?
- AMineral compounds
- BMineral mixture
- Cnatural elements
- DNone of these
Question 3 of 25
'Diamond' is-
- AElement
- Bcompound
- Cmixture
- Dliquid
Question 4 of 25
Which of the following is a 'compound'?
- ASteel
- BBrass
- CSand
- DDiamond
Question 5 of 25
"Every substance in the universe is made up of extremely tiny particles." Who first said this?
- ADalton
- BKanada
- CRutherford
- Dby avocado
Question 6 of 25
Which of the following processes is not useful for purification of solid impurities?
- Adistillation
- Bsublimation
- CCrystallization
- DAll these
Question 7 of 25
A substance formed by combining two or more elements in a definite proportion in terms of quantity is called-
- AElement
- Bcompound
- Cmixture
- DSolid
Question 8 of 25
Which of the following is a 'compound'?
- AMercury
- Bozone
- CAir
- Dammonia
Question 9 of 25
Water is a compound because-
- AIt is found in all three forms – solid, liquid and gas.
- BIt contains hydrogen and oxygen
- CIt consists of two different elements joined by chemical bonds
- DIt can be broken down into two simpler substances by chemical means.
Question 10 of 25
Which one of the following is not a mixture?
- Agraphite
- Bglass
- CBrass
- Dsteel
Question 11 of 25
Coal is
- AElement
- Bcompound
- Cmixture
- Dliquid
Question 12 of 25
A mixture of sodium chloride and ammonium chloride can be separated by
- Asublimation
- BNisyanvan
- Cchromatography
- Ddistillation
Question 13 of 25
gunpowder is
- AElement
- Bcompound
- Cmixture
- Dliquid
Question 14 of 25
Bleaching Powder is-
- AElement
- Bcompound
- Cmixture
- Dallotrope
Question 15 of 25
Mixing two or more pure substances in any ratio forms -
- AElement
- Bcompound
- Cmixture
- Dgas
Question 16 of 25
Which of the following substances does not contain oxygen?
- Acement
- BSand
- Ckerosene oil
- Dglass
Question 17 of 25
What is a 'pure element'?
- Aglass
- Bcement
- Csodium
- DSand
Question 18 of 25
Stainless steel is an alloy, whereas 'air' is a-
- Amixture
- Bcompound
- CElement
- DMerger
Question 19 of 25
Which of the following is 'Vayu'?
- AElement
- Bcompound
- Cmixture
- Dliquid
Question 20 of 25
Which of the following statements is not correct about compounds?
- AThe combination of substances in a compound is indefinite.
- BComponents can only be separated by chemical or electrochemical reactions
- CElements react to form new compounds
- DThe composition of each new substance is always determined
Question 21 of 25
Which of the following is neither an element nor a compound?
- AAir
- BWater
- CMercury
- DSalt
Question 22 of 25
The fourth state of matter is
- ASolid
- Bliquid
- CPlasma
- Dgas
Question 23 of 25
Which of the following is a 'chemical compound'?
- AAir
- Boxygen
- Cammonia
- DMercury
Question 24 of 25
Which one of the following is an element?
- Aruby
- BSapphire
- CEmerald
- DDiamond
Question 25 of 25
Which substance is found in three states (solid, liquid and gas) in nature?
- AH₂O
- BH₂O₂
- CNH₃
- DSO₂