Question

3) which of the following pair is not true A) calcium- Ca. B) silver-Ag. C) gold-Au. D) copper-co 4) most of the mass of an atom is contained in_____________. A) protons. B) electron. C) centre. D)neutron. 5) which of the following mixture is not a solution. A) sea water. B) Air. C) soda water. D) coal. 6) which tissues is an involuntary muscle with Linear stripes. A) skeletal muscle. B) smooth muscle. C) heart muscle. D) fiber compound muscle.




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Answer 1

Answer:

3) D (copper is Cu)

4) C

5) D

6) C

Answer 2

Answer:

3 :d copper-co

4: nucleus