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WorksheetsMETALS AND NON METALS 10TH CBSE
Total questions: 20
Worksheet time: 12mins
What is the chemical nature of rust?
iron (II) oxide
hydrated iron (II) oxide
iron (III) oxide
hydrated iron(III) oxide
Galvanizing is a process of:
Applying a Zinc coating to bare steel
Washing the body with the phosphate coating
dipping a body in E-COAT
Chemically etching primer to steel
two types of Noble metals
gold and platinum
iron and copper
stainless steel and aluminum
tin and brass
Rusting is a special term, given to the corrosion metal is...
Au
Pt
Fe
Ag
Which of the following metals is not attacked by the environment?
PbSO4 + Cu --> ?
CuSO4
CuSO4 + Pb
Pb
No reaction
Sodium reacts with water to produce
sodium chloride and hydrogen gas
sodium oxide and hydrogen gas
sodium dioxide and hydrogen gas
sodium hydroxide and hydrogen gas
A metal reacts with acid to produce salt and hydrogen gas. The same metal reacts with a base to again produce salt and hydrogen gas. What is that metal?
Zinc
Potassium
Magnesium
Iron
The metal which don't react with dilute HCl is
Pb
Zn
Cu
Mg
Which of the following metals will react only with steam to form its metal oxide?
Al
Fe
Zn
All the options
Which of the among the following metals will reacts with oxygen very violently ?
Magnesium
Sodium
Calcium
Copper
The correct decreasing order of reactivity of Al, Mg, Zn and Fe is
Al>Fe>Zn>Mg
Zn> Al> Fe >Mg
Fe>Zn>Al>Mg
Mg>Al>Zn>Fe
The melting point of sodium chloride is 1074 K while the melting point of magnesium chloride
is 981 K. Why does sodium chloride and magnesium chloride have a difference in melting point?
Magnesium chloride is soluble in kerosene and petrol.
Sodium chloride is formed by combining with one molecule of chlorine.
Sodium chloride has strong inter-ionic bonding than magnesium chloride.
Chloride is formed by combining only one molecule of magnesium
What are the constituents of solder alloy?
lead and tin
lead and zinc
copper and tin
iron and tin
An element A reacts with water to form a compound B which is used in white washing. The compound B on heating forms an oxide C which on treatment with water gives back B. Identify A, B and C
A’ is potassium metal, ‘B’ is potassium hydroxide, ‘C’ is potassium oxide.
A’ is Magnesium metal, ‘B’ is Magnesium hydroxide, ‘C’ is potassium oxide.
A’ is calcium metal, ‘B’ is calcium hydroxide, ‘C’ is calcium oxide.
None of the above
When a metal ‘X’ is treated with cold water, It gives base salt ‘X’ with molecular formula XOH (Molecular mass = 40) and liberate a gas Z which easily catches fire.
‘X’ is Na ‘Y’ is NaOH ‘Z’ is H2 gas
‘X’ is Na ‘Y’ is LiOH ‘Z’ is H2 gas
‘X’ is Na ‘Y’ is KOH ‘Z’ is H2 gas
None of the above
A non-metal ‘X’ exists in two different forms ‘Y’ and ‘Z\ ‘Y’ is hardest natural substance, whereas ‘Z’ is good conductor of electricity. Identify X, Y and Z.
‘X’ is Sulfur ‘Y’ is diamond ‘Z’ is graphite.
‘X’ is carbon ‘Y’ graphite is ‘Z’ is diamond
‘X’ is Oxygen ‘Y’ is diamond ‘Z’ is graphite.
None of the above
Aqua regia consists of hydrochloric acid and nitric acid in the ratio
3:1
1:3
2:1
1:2
The metal that is used for making the filaments of electric bulbs is
chromium
silver
molybdenum
tungsten
