The questions Raheem might have asked Generally metals are hard solids. How mercury, which is a fluid, be a metal ?

The questions Raheem might have asked Are there any other metal substances which are exceptional ?

Name one non-metal which is quite hard.

After completion of metals and non metals chapter. Raheem understood that metals are hard and non metals are soft. During the discussion with his brother he came to know that Diamond is a hardest material and it is a non metal. Similarly mercury is a soft material and it is a metal. These findings from the discussion raised some questions in Raheem’s mind. Can you guess those questions? Write them. (AS_(2))

some questions in Raheem‘s mind.can you guess those questions on metals? Write them.

You came to know that the Diamond is a hardest material and it is a non metal and similarly. Mercury is a soft material and it is a metal. Write down the questions raised in your mind.

How do non-metals generally react with acids?

The non – metal which is in solid state at room temperature

Predict a metal, which is a metal but does not have sonority.

Passage-I : Metallic sulphates can be obtained by reacting the metals (above hydrogen in ECS), or its oxide, hydroxide or carbonate with dil. H_(2)SO_(4) . Group IA metals also form hydrogen sulphates which can be isolated in solid. In general metal sulphates are soluble in water and crystallize with water of crystallization. Sulphates are thermally more stable than nitrates. Which metal sulphate will decompose into SO_(3) and metal oxide when heated:

Passage-I : Metallic sulphates can be obtained by reacting the metals (above hydrogen in ECS), or its oxide, hydroxide or carbonate with dil. H_(2)SO_(4) . Group IA metals also form hydrogen sulphates which can be isolated in solid. In general metal sulphates are soluble in water and crystallize with water of crystallization. Sulphates are thermally more stable than nitrates. Among the metals given below, which metal will not give its sulphate on treatment with dil. H_(2)SO_(4) .