Question 1 :
Give reasons that why immersion rods for heating liquids are made up of metallic substances.
Question 3 :
Fill in the blanks: Based on electrical conductivity, metals are _____ and non-metals are _____ in nature.
Question 4 :
Saloni took a piece of burning charcoal and collected the gas evolved in a test tube. What is the nature of the gas.
Question 5 :
Write the equation of reaction involving the reaction of iron and copper sulphate.
Question 6 :
Fill in the blank: Metals react with acids to produce _____ gas.
Question 9 :
Saloni took a piece of burning charcoal and collected the gas evolved in a test tube. Name the gas evolved.
Question 12 :
Saloni took a piece of burning charcoal and collected the gas evolved in a test tube. How will she find the nature of the gas?
Question 13 :
Fill in the blanks: Based on heat conduction, metals are _____ and non-metals are _____ in nature.
Question 14 :
Fill in the blanks: Metals are _____ conductors of heat and ______.
Question 15 :
State True or False: Copper displaces zinc from zinc sulphate solution.
Question 17 :
Write the equation of reaction involving the reaction of copper plate and sulphuric acid.
Question 18 :
Fill in the blanks: Based on hardness, metals are _____ and non-metals are _____ in nature.
Question 21 :
Give reasons that why sodium and potassium are stored in kerosene.
Question 23 :
Fill in the blanks: Based on appearance, metals are _____ and non-metals are _____ in nature.
Question 25 :
Fill in the blanks: Based on ductility, metals are _____ and non-metals are _____ in nature.