1.  Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?

a

  The north pole of another permanent magnet

b

 A piece of iron that is not a permanent magnet

c

 A positively charged glass rod

d

 A negatively charged rubber rod

Answer & Explanation
Answer : Option B

2.  Atoms of an element differ from those of all other elements in

a

  atomic number and electronic configuration

b

 number of neutrons and number of valence electrons

c

 atomic number and number of valence electrons

d

 number of neutrons and electronic con- figuration

Answer & Explanation
Answer : Option A

3.  Wood is the main raw material for the manufacture of

a

  gun powder

b

 paper

c

 ink

d

 paint

Answer & Explanation
Answer : Option B

4.  Potassium nitrate is used in

a

  Fertiliser

b

 Medicine

c

 Salt

d

 Glass

Answer & Explanation
Answer : Option D

5.  Kilowatt is a unit to measure

a

  work

b

 power

c

 electricity

d

 current

Answer & Explanation
Answer : Option B

6.  German Silver is an alloy of

a

  Silver, Copper and Aluminium

b

 Silver, Zinc and Nickel

c

 Copper, Silver and Nickel

d

 Zinc, Copper and Nickel

Answer & Explanation
Answer : Option D

7.  According to Avogadro's Hypothesis, the smallest particle of an element or a compound, that can exist independently, is called .

a

  a molecule

b

 a cation

c

 an anion

d

 an atom

Answer & Explanation
Answer : Option A

8.  Cholera is caused by

a

  vibrio cholerae

b

 bacterioceoccurs

c

 salmonella

d

 none of these

Answer & Explanation
Answer : Option A

9.  Which of the following is not a mixture?

a

  Glass

b

 Graphite

c

 Steel

d

 Aluminium

Answer & Explanation
Answer : Option B

10.  Monazite is an ore of

a

  thorium

b

 zirconium

c

 iron

d

 titanium

Answer & Explanation
Answer : Option A

11.  If a bar magnet is broken into two pieces, then

a

  each piece will remain a magnet with north pole at one end and south pole at the other end

b

 one piece will have North Pole on both ends and other piece will have South Pole on both ends

c

 only longer piece will behave as bar magnet

d

 both pieces will lose their magnetism

Answer & Explanation
Answer : Option A

12.  Permanent hardness of water may be removed by the addition of

a

  alum

b

 sodium carbonate

c

 lime

d

 potassium permanganate

Answer & Explanation
Answer : Option B

13.  is a medication used to prevent and to treat malaria in areas where malaria is known to be sensitive to its effects

a

  aspirin

b

 neoprene

c

 chloroquine

d

 isoprene

Answer & Explanation
Answer : Option C

14.  The highest grade and best quality coal is

a

  Lignite

b

 Anthracite

c

 Bituminous

d

 Peat

Answer & Explanation
Answer : Option B

15.  The confirmatory test for HIV virus causing AIDS is:

a

  CDR count

b

 Western blot test

c

 ELISA test

d

 PCR

Answer & Explanation
Answer : Option C

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