Atom is made up of smaller particles called:
a) Sub-atomic particles
b) Semi-atomic particles
c) Mixed particles
d) Nuclear particles
Onion, daffodil, tulip are which kind of stems?
a) Bud
b) Bulb
c) Cladophyll
d) None of these
Valency of hydrogen and potassium is.__
a) -1 and +2
b) +1 for both
c) +1 and +4
d) +1 and -1
Three states of matter are_________
a) Ice, water and vapor
b) Solid, liquid and gas
c) Metal, water and air
d) Hydrocarbon, fats and protein
Which of the following is known as milk of magnesia?
a) sodium hydroxide
b) calcium hydroxide
c) ammonium hydroxide
d) magnesium hydroxide
Polythene is a ___________
a) Monomer
b) Polymer
c) Element
d) Fertilizer
