Question

Write true and false for the following statements: [10×1=10]

1) Distilled water is pure water.

2) HCl is a diatomic molecule.

3) Nitrogen and Hydrogen elements is present in the Ammonia compound.

4) Mist is a homogeneous mixture.

5) The valency of a group-14 element is 4.

6) Paper chromatography is based on the principle of adsorption.

7) The valency of a radical is the same as the charge over it.

8) Calcium, an element of group 2 of the periodic table, forms Ca2H.

9) The components of a mixture chemically react with one another.

10) Black coffee is a pure substance.​

Answer 1

Answer:

1 true

2 false

3 true

4true

5 false

6 true

7 true

8 true

9 true

10. true

Answer 2

Answer:

1 - True

2 - True

3- True

4 - False

5 - True

6- False

7- False

8- False

9- True

10- True

Step-by-step explanation:

I can be wrong in 1 or 2 but rest all are correct so plz mark me brainliest I really need it