SAT Chemistry - Metals and Non-Metals
Exam Duration: 45 Mins Total Questions : 30
Match the following
| List I | List II |
|---|---|
| a. Bismuth | 1. Soft metal |
| b. Platinum | 2. Poor conductor of electricity |
| c. Potassium | 3. Low melting point but high boiling point |
| d. Gallium | 4. Noble metal |
- (a)
a b c d 2 4 1 3 - (b)
a b c d 2 1 4 3 - (c)
a b c d 2 3 1 4 - (d)
a b c d 3 4 1 2
The suitable method to prevent corrosion of iron containers which are used to preserve edible food materials like meat and vegetables is
- (a)
Galvanization
- (b)
Tinning
- (c)
Painting
- (d)
All the above
The oxide which reacts with acids as well as bases is
- (a)
Na2O
- (b)
CuO
- (c)
MgO
- (d)
ZnO
Zinc when reacts with sodium hydroxide solution produces ___________ gas.
- (a)
H2
- (b)
O2
- (c)
both H2 and O2
- (d)
None of these
Solder is an alloy of Pb and _____________
- (a)
Cu
- (b)
Zn
- (c)
Ni
- (d)
Sn
Sodium chloride is insoluble in
- (a)
water
- (b)
petrol
- (c)
kerosene
- (d)
both B and C
Of these, the most ductile metal is ______________
- (a)
Al
- (b)
Au
- (c)
Cu
- (d)
Ag
Which of the following metals does not displace H2 gas from dilute HCl or dilute H2SO4?
- (a)
Mg
- (b)
Cu
- (c)
Zn
- (d)
Al
Of these, which metal will lose electrons most readily and form cations?
- (a)
K
- (b)
Zn
- (c)
Cu
- (d)
Au
Which of the following metals generally occur in liquid sate?
- (a)
Mercury
- (b)
Bromine
- (c)
Gallium
- (d)
A & C both
Ionic compound have
- (a)
low melting and high boiling points
- (b)
high melting and low boiling points.
- (c)
low melting and low boiling points
- (d)
high melting and high boiling points
Ionic compounds are soluble in
- (a)
water
- (b)
benzene
- (c)
ether
- (d)
alcohol
Physical nature of most of the ionic compounds is
- (a)
solid
- (b)
liquid
- (c)
gas
- (d)
May exist in any state
Which of the following is.are oxide ores
- (a)
Bauxite
- (b)
Cuprite
- (c)
Haematite
- (d)
All of these
Horn silver is a/an
- (a)
sulphate ore
- (b)
halide ore
- (c)
oxide ore
Forth floatation method is used for the concentration of
- (a)
sulphide ores
- (b)
sulphate ores
- (c)
halide ores
- (d)
oxide ores
Which of the following methods is based on the principle of the difference in the wetting properties of the ore and gangue particles with water and oil?
- (a)
Magnetic separation
- (b)
Froath floatation process
- (c)
Hydraulic washing
- (d)
None of these
Process of roasting and calcination takes place in
- (a)
bessemer converter
- (b)
blast furnace
- (c)
reverberatory furnace
- (d)
electrolytic cell
The most reactive of the following metals is
- (a)
Ca
- (b)
Al
- (c)
Ni
- (d)
Pb
Metal which is the best conductor of electricity
- (a)
Nickel
- (b)
Silver
- (c)
Gold
- (d)
Sodium
Non-metals combine with oxygen to produce
- (a)
Acidic oxide
- (b)
Basic oxide
- (c)
Acidic or neutral oxide
- (d)
Amphoteric
Element which is present in native state is
- (a)
Iron
- (b)
Calcium
- (c)
Copper
- (d)
Platinum
Silver article turns black after a period of time due to formation of:
- (a)
Silver nitrate
- (b)
Silver sulphide
- (c)
Silver oxide
- (d)
Silver chloride
A metal which is stored in kerosene oil is
- (a)
Pb
- (b)
Al
- (c)
Cu
- (d)
Na
An element used in computers, T. V etc due to its semiconductor properties is
- (a)
Nitrogen
- (b)
Silicon
- (c)
Bromine
- (d)
Carbon
The formula of magnetite is
- (a)
Fe2O3
- (b)
Fe3O4
- (c)
Cu2O
- (d)
CuS
Which of the following is a carbonate ore of copper?
- (a)
Cuprite
- (b)
Pyrite
- (c)
Copper glance
- (d)
Malachite
_________ is the slag formed in blast furance
- (a)
CaC03
- (b)
CaSi03
- (c)
Na2Si03
- (d)
None of these
The metal with which hydrogen reacts to form metal hydride is
- (a)
Hg
- (b)
Ca
- (c)
Ag
- (d)
Au
Which of the following is not a heavy metal?
- (a)
Cu
- (b)
Hg
- (c)
Pb
- (d)
K
