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SPECIAL FEATURE - TO DAY ON LINE GENERAL SCIENCE Test No:5
Choose the correct option from the choices given under the question.
1.
Which of the following reacts with excess oxygen to forma normal oxide?
1.
Li
2.
Na
3.
K
4.
Rb.
2.
Which of the following sodium salt on treatment with soda lime does not produce alkane?
1.
sodiumethanoate
2.
sodium isobutyrate
3.
sodium propanoate
4.
sodium methanoate.
3.
Which of the following substance is not present in acid rain ?
1.
Sulphuric acid
2.
Nitric acid
3.
Sulphurous acid
4.
Acetic acid.
4.
Which of the following transition metals has the highest density?
1.
Pt
2.
Hg
3.
Pd
4.
Os.
5.
Which of the following will be produced when ethanoic acid and diazomethane are allowed to react?
1.
Ethyl acetate
2.
Methyl methanoate
3.
Methyl ethanoate
4.
Ethanoyl cyanide.
6.
Which of the p-block elements are not representative elements?
1.
Alkali metals
2.
Group- 14 elements
3.
Group- 18 elements
4.
Halogens.
7.
Which one of the following is a source of energy but does not cause pollution ?
1.
Gasoline
2.
Nuclear power plant
3.
Fossil fuels
4.
Sun.
8.
Which one of the following sets of elements has the strongest tendency to form positive ions in gaseous state?
1.
Li, Na, K
2.
Be, Mg, Ca
3.
F, Cl, Br
4.
O, S, Se.
9.
Arriving at a generalization on the basis of a number of similar observation is called_____
1.
Deductive Process
2.
Inductive Process
3.
Scientific Process
4.
Convention
10.
Who invented Electric Bulb?
1.
Marconi
2.
Thomas Alwa Edision
3.
Thomas Willium
4.
Alexarder Gramhambell
11.
One nano metre =
1.
10Aš
2.
11Aš
3.
12Aš
4.
10.5Aš
12.
In CGS system units of time
1.
nm
2.
hours
3.
seconds
4.
minutes
13.
The force is the product of _____
1.
velocity and acceleration
2.
the speed and acceleration
3.
mass and speed
4.
mass and acceleration
14.
Howmany times light refleced in Periscope?
1.
1
2.
2
3.
3
4.
4
15.
Which chemical element imparts the yellow colour observed in fire work displays?
1.
Calcium
2.
Copper
3.
Sodium
4.
Magnesium
16.
Who formulated the Heat Emission theory(Thermonic Theory)?
1.
C.V. Raman
2.
J.C. Bose
3.
Meghanath Saha
4.
Dr. MS.Swaminathan
17.
The ratio of oxygen and nitrogen present in the atmosphere (by volume) is:
1.
1 : 2
2.
1 : 3
3.
1 : 4
4.
1 : 8
18.
The volume of water vapour present in air is low in:
1.
Coastal areas
2.
Himalayan regions
3.
Deltas
4.
Plateau regions
19.
The instrument used to measure thickness of thin glass plates is
1.
Vernier calipers
2.
Screw gauge
3.
Scale
4.
Tape
20.
If the zeroth division of the head scale is below the index line then the correction is ________
1.
Positive
2.
Negative
3.
No correction
4.
None
21.
Pitch of the screw (P)=
1.
X x N
2.
X + N
3.
X/N
4.
N/X
22.
Which of the following is the most important life process ?
1.
Transport
2.
Exertion
3.
Photosynthesis
4.
Nutrition
23.
Auxins in plants are synthesized at
1.
Nodes
2.
Petiole
3.
Meristems
4.
Internodes
24.
Which sodium thiosulphate solution is shaken with iodine, thiosulphate is changed to
1.
Sulphite ion
2.
Sulphate ion
3.
Tetrathionate ion
4.
Sulphide ion.
25.
Which type of elements form ionic hydrides?
1.
Transition elements
2.
Metalloids
3.
Elements with high electronegativity
4.
Elements with high electropositivity.
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