Metals and Their Compounds: 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
In which metal vessel is mercury kept?
- ASilber
- Blead
- CIron
- Dzinc
Question 2 of 25
Which of the following heating elements is used in electric press?
- Acopper wire
- Bnichrome wire
- Clead wire
- Diron wire
Question 3 of 25
Sodium thiosulphate is used in photography.
- Adarkening the image
- Bwhitening the image
- Cto separate silver bromide by dissolving it
- DTo make the image blur-free
Question 4 of 25
Which one of the following is the chemical formula of gypsum, a constituent of cement?
- ACa²SiO⁴
- BCaSO⁴ 2H ²O
- CCaO
- DCaSO⁴ 3H ²O
Question 5 of 25
weight of iron when rusted
- Aincreases
- Bdecreases
- Cno change
- Dis converted
Question 6 of 25
The chemical formula of the chemical used as 'Makara Dhwaj' in medicines is
- AHgCl²
- BHg²Cl²
- CHg
- DHgo
Question 7 of 25
Which of the following statements regarding aluminium is not correct?
- AAluminum hydroxide is amphoteric in nature.
- BAluminum exists in the free state in nature.
- CThe demand for aluminum appliances is higher than that of iron appliances.
- DMetallic methods of producing aluminum are more expensive than those for iron.
Question 8 of 25
Which of the following is the chemical name of common salt?
- Acalcium carbonate
- Bsodium carbonate
- Csodium chloride
- Dnone of these
Question 9 of 25
What is added to gold to make it hard?
- AIron
- BNickel
- Ccopper
- Dlead
Question 10 of 25
Which of the following metals is found in the free state?
- Aaluminum
- BSleep
- CIron
- DCC
Question 11 of 25
Common alum is
- AK²SO⁴ AL²(SO)⁴ 24H²O
- BK²SO⁴ Al,² SO³)⁴ 21H²O
- CK²SO⁴ AL²(SO⁴) ³18H²0
- DK²SO⁴ Fe ²(90⁴)³ 24H²0
Question 12 of 25
The 'Heinzclever method' is the commercial method of production of?
- Acaustic soda
- Bnitric acid
- CSulphuric end
- Dbleaching powder
Question 13 of 25
The salt found in the highest quantity in sea water is
- Asodium chloride
- Bzinc oxide
- Csodium carbonate
- Dmagnesium chloride
Question 14 of 25
It is known as 'White Gold'.
- Apetroleum
- BPlatinum
- Csilver
- Dpure gold
Question 15 of 25
Which of the following pairs is correctly matched?
- ASilver Iodide Horn Silver
- BSilver Chlorite Artificial Rain
- CZinc Phosphide Rat Poison
- DZinc sulfide Zinc sulfide
Question 16 of 25
The pungent substance used in dyeing is
- Acalcium hydroxide
- Baluminum sulfate
- Ccalcium carbonate
- Dzinc phosphate
Question 17 of 25
The chemical name of bauxite is
- Aaluminum oxide
- BAluminum chloride
- CAmmonium Sulphate
- DHydrated Alumina
Question 18 of 25
Which of the following materials is very hard and very ductile?
- Acarborundum
- Btungsten
- CCast Iron
- DNichrome
Question 19 of 25
'Green Vitriol' or 'Green Kasis' is the popular name of which chemical substance?
- Acopper sulphate
- Bzinc sulphate
- CMagnesium Sulfate
- Dferrous sulfate
Question 20 of 25
The most malleable and malleable metal is
- ASleep
- Blead
- Caluminum
- Dsilver
Question 21 of 25
On which products is the Hallmark symbol affixed?
- AFood ingredient
- Bgold jewellery
- CPetroleum products
- DEnvironment friendly products
Question 22 of 25
If a piece of sodium is put in water, it
- Awill drown
- Bwill keep floating
- CFloating will burn
- Dwill give smoke
Question 23 of 25
The chemical formula of 'Cinewar' is
- AHgS
- BPbS
- CCuo
- DMgSO⁴
Question 24 of 25
The metal that can be cut with a knife is-
- Arepentance
- BIron
- Clead
- Dsodium
Question 25 of 25
Which of the following metals is used in the manufacture of aircraft?
- AChromium
- BTitanium
- CPalladium
- Dlead