MCQ on Sorting Materials into Groups
1- Which of the following is/are metals?
(A) iron, gold, copper
(B) paper, plastic, rubber
(C) both A and B
(D) none of the above
2- Because of which actions metals often loose their shine and appear dull?
(A) action of air
(B) action of moisture
(C) both A and B
(D) none of the above
3- Materials which can be compressed or scratched easily are called …………………
(A) hard
(B) soft
(C) rough
(D) none of the above
4- Some metals which are difficult to compress are called …………………
(A) rough
(B) soft
(C) hard
(D) none of the above
5- Which of the following is/are properties of metals?
(A) luster
(B) hardness
(C) smooth or rough
(D) all of the above
6- Which of the following substance/s will completely disappear or dissolve in water when it mixes with water in glass?
- Salt
- Sugar
- Sand
- Chalk Powder
- Sawdust.
(A) only a
(B) only a and b
(C) only c, d and e
(D) all of the above
7- The substances which disappear or dissolve completely in water are called…………..
(A) insoluble
(B) soluble
(C) transparency
(D) none of the above
8- Substances which do not mix with water and do not disappear even after stir for a long time. These substances are called …………………..
(A) transparency
(B) soluble
(C) insoluble
(D) none of the above
9- What is the main role/function of water in our body?
(A) It keeps the body strong
(B) Water keeps the person ill
(C) It maintains a large number of substances
(D) It dissolves a large number of substances
10- Which of these liquids can mix well in water?
- vinegar
- coconut oil
- kerosene oil
- mustard oil
(A) only a
(B) only c and d
(C) only b
(D) none of the above
ANSWERS:
1-(A), 2-(A), 3-(B), 4-(C), 5-(D), 6-(B), 7-(B), 8-(C), 9-(D), 10-(A)