Do as Directed.

Questions

🎯

5 questions · timed · auto-graded

Question 11 Mark

Statement are incorrect. write the correct statement:
The number of atoms in a molecules of sulphur are 4.

Answer

The number of atoms in a molecules of sulphur are 8.

Question 21 Mark

Statement are incorrect. write the correct statement:
The symbolic representation of a molecule of a compound is called symbol of that compound.

Answer

The symbolic representation of a molecule of a compound is called Chemical formula.

Question 31 Mark

Statement are incorrect. write the correct statement:
The symbol NaHCO3 stands for washing soda.

Answer

The symbol Na2CO3 stands for washing soda.

Question 41 Mark

Statement are incorrect. write the correct statement:
The symbol of the element sodium is ‘So’.

Answer

The symbol of the element sodium is ‘Na’.

Question 51 Mark

Statement are incorrect. write the correct statement:
The smallest unit of a pure substance is called an atom.

Answer

The smallest unit of a pure substance is called molecules

Do as Directed. - CHEMISTRY STD 7 Questions - Vidyadip

CHEMISTRY Do as Directed.