1.
Water is neither
acidic nor alkaline because
a. it cannot accept or donate protons.
b. it boils at a high temperature.
c.
it can dissociate into equal number of hydrogen ions.
d. it cannot donate or accept electrons.
2.
Chemical change does
not take place in case of?
a.
souring of milk into
curd
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b.
rusting of iron in
atmosphere
c.
burning
of magnesium ribbon in air
d.
emitting of light by a red hot platinum wire
3.
Vulcanization is a?
a.
science of studying
volcanoes
b.
method to degrade
polymers
c.
process connected with
the making of voltaic cells
d.
process of hardening of robber by heating it with sulphur
4.
Which of the following
causes the rusting of iron?
1. Oxidation
2. Reduction
3. Chemical reaction with oxygen
4. Chemical reaction with CO
1. Oxidation
2. Reduction
3. Chemical reaction with oxygen
4. Chemical reaction with CO
a. l and 2
b. 2 and 3
c.
3 and 4
d. l and 3
5.
Which of the following
statements is/are true?
1. The process of oxidation leads to a gain of electrons.
2. The process of oxidation leads to a Toss of electrons.
3. The process of reduction leads to a gain of electrons.
4. The process of reduction leads to a loss of electrons.
1. The process of oxidation leads to a gain of electrons.
2. The process of oxidation leads to a Toss of electrons.
3. The process of reduction leads to a gain of electrons.
4. The process of reduction leads to a loss of electrons.
a.
l only
b.
l and 4
c.
2 and 3
d.
4 only
6.
Light year is a unit
of measurement of
a.
speed of light
b.
stellar distances
c.
speed of rockets
7.
One micron is equal to
a. 1/10th of nm
b. 1/100th of nm
c.
1/1000th of nm
d. 1/10000th of nm
8.
Hydrometer is an
instrument
a. for measuring sound under water
b. to detect the presence of hydrogen in the atmosphere
c.
for measuring the specific gravity of liquids
d. to detect the changes in atmospheric humidity
9.
‘Bar’ is the unit of?
a.
Heat
b.
Temperature
c.
Current
d.
atmospheric pressure
10.
A chronometer measures
a. sound waves
b.
time
c.
water waves
d. colour contrast
11.
One fathom is equal
to?
a. 6 meters
b.
6 feet
c.
60 feet
d. 100 cms
12.
What is the unit of measuring
the pitch or frequency of sound?
a. Coulomb
b. Hum
c.
Cycles
d.
Hertz
13.
Electric
current is measured by
a. Anemometer
b. Voltmeter
c.
Ammeter
d. Commutator
14.
Fathom is the unit of?
a. Sound
b.
Depth
c.
Distance
d. Frequency
15.
Kilohertz is a unit
which measures
a. electric resistance
b. power used by a current of one ampere
c.
electromagnetic radio wave frequencies
d. None of these
16.
If you swim one km,
how many miles do you swim?
a. 0.5
b.
0.62
c.
0.84
d. 1.6
17.
Kilowatt is a unit to
measure
a. Work
b. Electricity
c.
Power
d. Current
18.
Very small time
intervals are accurately measured by the
a. Pulsars
b. Quartz clocks
c.
Atomic clocks
d. White dwarfs
19.
Decibel is the unit
used for
a. speed of light
b. intensity of heat
c.
intensity of sound
d. radio wave frequency
20.
Which of the following
is correct regarding the barometer commonly used in homes to see weather
indication?
1. It is called Furlin’s barometer and uses mercury.
2. It is called Furlin’s barometer and uses alcohol.
3. It is called aneroid barometer and uses mercury.
1. It is called Furlin’s barometer and uses mercury.
2. It is called Furlin’s barometer and uses alcohol.
3. It is called aneroid barometer and uses mercury.
a. 1
b. 2
c.
3
d.
None
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