NCERT Class 9 Science Chapter 3 Atoms and Molecules
Chapter 3 Atoms and Molecules Intext Questions Question 1: In a reaction, 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. The p...
NCERT Class 9 Science Chapter 11 Work and Energy
Chapter 11 Work and Energy Intext Questions Question 1: A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of ...
NCERT Class 9 Science Chapter 14 Natural Resources
Chapter 14 Natural Resources Intext Questions Question 1: How is our atmosphere different from the atmospheres on Venus and Mars? Answer: A...