Metals and Their Compounds: MCQ Test
50 questions · pick one option for each · submit when you finish to see your score and the correct answers.
Question 1 of 50
Dolomite is the ore of which of the following metals?
- Astrontium
- Bpotassium
- Caluminum
- DCalcium
Question 2 of 50
Which one of the following is a metal?
- Achlorine
- BZinc
- CNeon
- DIodine
Question 3 of 50
By passing water vapour over red hot iron, it is obtained-
- ACO+H²
- BH²O²
- CH₂
- DN²
Question 4 of 50
If a piece of sodium is put in water, it
- Awill drown
- Bwill keep floating
- CFloating will burn
- Dwill give smoke
Question 5 of 50
'Degana' located in Rajasthan is famous for the production of what?
- Alimestone
- Bmarble
- CPlatinum
- Dtungsten
Question 6 of 50
The best conductor of electricity among the following is
- AIron
- Bsilicon
- CCopper
- Dceramic
Question 7 of 50
Which of the following is the best conductor of electricity
- AMica
- Bcopper
- CGold
- Dsilver
Question 8 of 50
The chemical name of hypo commonly used in photography is
- Asodium thiosulfate
- Bsilver nitrate
- Csodium nitrate
- DSilver Iodide
Question 9 of 50
Which statement is false for 'bleaching powder'?
- AIt is more soluble in water
- BIt is a light yellow powder
- CIt is an oxidizing agent.
- DIt releases chlorine when reacted with dilute acids.
Question 10 of 50
Red Lead is
- APtSO⁴
- BPbO²
- CPh³O⁴
- DPbCO³
Question 11 of 50
Which of the following does not form an oxide when reacted with oxygen?
- AMagnesium
- Blead
- CTin
- DSilver
Question 12 of 50
Who extracts mercury?
- AFrom galena
- Bfrom bauxite
- CCinnabar
- DFrom pyrolusite
Question 13 of 50
Which of the following metals is used in the manufacture of aircraft?
- AChromium
- BTitanium
- CPalladium
- Dlead
Question 14 of 50
The following metal pollutes the air when petrol is burnt in vehicles
- AMercury
- Bcadmium
- Clead
- Dcarbon dioxide
Question 15 of 50
Which metal is used to make airplanes and rockets?
- ALimit
- Baluminum
- COut
- DCopper
Question 16 of 50
Bleaching powder is
- ACaOCI
- BCaOCl²
- CCaOCl³
- DCaOC⁴
Question 17 of 50
Which of the following natural substances contains 'Iron' (Fe)?
- Achlorophyll
- Bcollagen
- CCarotene
- Dmyoglobin
Question 18 of 50
Due to the presence of excess amount of which of the following metals, a person gets a disease called cirrhosis?
- AIron
- Bcopper
- Csodium
- Dpotassium
Question 19 of 50
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 20 of 50
With which substance is human blood mixed and stored in blood cells?
- Asodium nitrate and dextrate
- Bsodium and oxygen
- Coxygen and chlorine
- Dpotassium and calcium chloride
Question 21 of 50
Potash alum is useful in water purification because it
- Akills microbes
- BIt removes the hardness of water
- CIt precipitates colloidal solutions
- DIt keeps the water soft
Question 22 of 50
Which aluminum salt is commonly used to stop bleeding?
- Aannium chloride
- Baluminum nitrate
- CAmmonium Sulphate
- DPotash alum
Question 23 of 50
It is known as 'White Gold'.
- Apetroleum
- BPlatinum
- Csilver
- Dpure gold
Question 24 of 50
What is added to gold to make it hard?
- AIron
- BNickel
- Ccopper
- Dlead
Question 25 of 50
The chemical formula of Epsom Salt is
- AZnSO⁴7H²O
- BNa²S0⁴ 10H²O
- CNa²CO³ 10H²O
- DMgSO⁴7H²O
Question 26 of 50
Which of the following is used as a 'rodenticide'?
- AZinc Carbonate
- BZinc Chloride
- CZinc Sulfide
- DZinc Phosphide
Question 27 of 50
Why is silver nitrate usually stored in coloured bottles?
- AIt gets oxidised in air
- BIt vaporizes in white bottles
- CIt explodes in sunlight
- DIt decomposes in sunlight
Question 28 of 50
In which metal vessel is mercury kept?
- ASilber
- Blead
- CIron
- Dzinc
Question 29 of 50
The chemical formula of Green Vitriol is
- ACaSO⁴ 2H² O
- BCuSO⁴ SH²O
- CFSO⁴ TH²O
- DZnSO⁴TH²O
Question 30 of 50
Which disease is caused by increase in the amount of copper metal in the human body?
- ASiderosis
- Banemia
- Cesophagus
- DWilson's disease
Question 31 of 50
To protect iron from rust, a protective layer of zinc is applied on it, by what name is this process known?
- Agalvanization
- Bsmelting
- CAnnealing
- Dwelding
Question 32 of 50
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 33 of 50
For which mineral are the mines of Jawar located in Rajasthan famous?
- Acopper
- BIron
- Cmica
- Dzinc
Question 34 of 50
Lightning conductors are made of
- AIron
- Bcopper
- Caluminum
- Dsteel
Question 35 of 50
Bleaching powder is prepared by passing through which of the following?
- Achlorine from slaked lime
- Boxygen from slaked lime
- CCO² from the touch of extinguished
- Dchlorine from quicklime
Question 36 of 50
Anemia is caused by the deficiency of which element?
- Acopper
- BIron
- Ccalcium
- DMagnesium
Question 37 of 50
The chemical name of 'Galena' is
- Alead sulphate
- Blead oxide
- Clead sulphide
- Dcalcium sulphate
Question 38 of 50
What is Philosopher's Wool?
- AZnO
- BZnCO³
- CZnS
- DZnSO⁴
Question 39 of 50
The chemical name of Blue Vitriol is-
- AFerrous Sulphate Heptahydrate
- BZinc Sulfate Heptidate
- Ccopper sulphate pentahydrate
- Dsodium sulfate decahydrate
Question 40 of 50
Gold is mainly extracted from which ore?
- ASylvanite
- Bcalaverite
- CIn both of the above
- Dnone of these
Question 41 of 50
Which process is not beneficial to prevent rusting of ore?
- AAnnealing
- Bgrease
- Czinc plating
- Dto paint
Question 42 of 50
The chemical formula of Hypo is-
- ANa² S² O³ SH²O
- BNa²S²O³ 3H³O
- CNa²S² O³ 2H²O
- DNa²SO⁴ 10H² O
Question 43 of 50
Which metal is added to convert iron into steel?
- ARanga
- BManganese
- CCadmium
- DNickel
Question 44 of 50
Silver is mainly extracted from which ore?
- Aargentite
- BNative Silver
- CKanrajiright
- DCalamine
Question 45 of 50
'Chalk' and 'marble' are different forms of which of the following?
- ACalcium Hydrogen Carbonate
- Bcalcium carbonate
- CCalcium Acetate
- Dsodium carbonate
Question 46 of 50
The chemical formula of quick lime is
- ACaO
- BCa(OH)²
- CCaCO³
- DCaCl²
Question 47 of 50
From a chemical point of view, vermilion is
- Acalcium carbonate
- Bpotassium nitrate
- Cpotassium sulfide
- DMercury || Sulphide
Question 48 of 50
Which of the following is the chemical name of common salt?
- Acalcium carbonate
- Bsodium carbonate
- Csodium chloride
- Dnone of these
Question 49 of 50
The chemical formula of Glauber Salt is
- ACaSO⁴2H²o
- BNa² SO⁴ 10H²O
- CMgSO⁴7H ²O
- DZnSO⁴ 7H² O
Question 50 of 50
The chemical formula of caustic soda is
- ANaOH
- BNaCl
- CNaHCO³
- DNa²CO³