Question

Identify the error in the given statements. Circle the incorrect word and write the correct word in
the blank.
1. Atoms always combine in fractions to form a molecule.
2. When electric current is passed through acidulated water, it decomposes to
give carbon and oxygen gases.
3. Ozone is a polyatomic molecule.
4. A negatively charged ion is called cation.
5. Chlorine ion is represented as Ca2+.
6. The elements are arranged in the decreasing order of their atomic numbers
in a periodic table.​

Answer 1

Answer:

1. atoms combine in form of particles to form molecule .

2. electric current when passed through acidulated water it decomposes to give hydrogen and oxygen.

4. negatively charged ion is called anion .

5. chlorine is represented by Cl-

6. elements are arranged in increasing order of atomic number.

[3rd one is correct]

Answer 2

1) fraction – particle

2) carbon – hydrogen

3) polyatomic – triatomic

4) cation – anion

5) ca 2 + – cl -

6) decreasing – increasing