Question 1 What is meant by the concentration of a solution? Question 2 How much water should be added to 15g of salt to obtain 15 per cent salt solution? Question 3 Calculate the concentration of a solution which contains 2.5g of salt dissolved in 50g of water? Question 4 What does a 15% alcohol solution means? Question 5 If 25mL of acetone is present in 150ml of … [Read more...] about Concentration
Class 9
Change in State of Matter
Question 1 What are the ways in which physical state of matter can be changed ? Question 2 What is boiling ? Question 3 What is condensation? Question 4 What is freezing? Question 5 What do you mean by inter-conversion of matter? Question 6 What is melting or fusion. Question 7 What does higher melting point indicate ? Question 8 How does a solid changes … [Read more...] about Change in State of Matter
States of Matter
Class 9 States of Matter Notes Text Book NCERT Class Class 9 Subject Science Topic States of Matter Chapter Name Matter in Our Surroundings Category Class 9 Science Related Questions Question 1 Name three states of matter? Question 2 Differentiate between three states of matter ? Question 3 Give full form of LPG and CNG … [Read more...] about States of Matter
Characteristics of Particle Nature of Matter
Question 1 What are the characteristics of particle nature of matter ? Question 2 What happens when a crystal of potassium permanganate is mixed with water ? Question 3 Why there is no increase in volume when salt is dissolved in water ? Question 4 How will you show that particles of matter are constantly moving ? Question 5 A piece of chalk can be broken into small … [Read more...] about Characteristics of Particle Nature of Matter
Matter
Class 9 Matter Notes Text Book NCERT Class Class 9 Subject Science Topic Matter Chapter Name Matter in Our Surroundings Category Class 9 Science Related Questions Question 1 What is matter ? Question 2 Give example of matter ? Matter Anything which occupies space and has mass is called matter. For Example :Air, water, iron, … [Read more...] about Matter