Question

1.Which of these choices will not change the state of matter?

(a) Temperature

(b)Crushing a crystal

(c)Pressure

(d) Heat

2. As of the 1990s, scientists have proved the existence of how many states of matter?

(a) Two

(b) Three

(c)Four

(d) Five

3. Out of the following which is the densest state of matter?

(a)Solids

(b)Liquids

(C) Gases

(d)Plasmas

4. Densities of two gases are in the ratio 1: 2 and their temperatures are in the ratio 2:1, then the ratio of their respective pressure is:

(a)1 : 1

(b)1:2

(c)2:1

(d)4:1

5. A bottle of ammonia and a bottle of dry hydrogen chloride connected through a long tube are opened simultaneously at both ends, the while ammonium chloride ring first formed will be:

(a) At the center of the tube

(b)Near the hydrogen chloride bottle

(c)Near the ammonia bottle

(d) Throughout the length of the tube

6. Select the one that is not a matter:

(a)Feeling of hot

(b)Smoke

(C) Humidity

(d)Water

​

Answer 1

1. b

2. b

3. solid

Hope it helps at least half

Answer 2

Answer:

1. option A (temperature)

2. option D (5)

3.option A (Solids)

4.option C (2:1)

5. option B

6. option B (smoke)