Question

(1) the process of heating
an ore below it's melting point in the absence of air to get melting oxide.

(2) a compound which conduct electricity in the molten state or when dissolved in water

(3) the process of formation of a solid when solution are mixed

(4) a phenomenon by which hydrated salts, on exposure to dry air, lose their water of crystallisation and crumble to powder​​

Answer 1

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⑴ The process of heating an ore below it's melting point in the absence of air to get melting oxide.

Answer :→ Calcination

⑵ A compound which conduct electricity in the molten state or when dissolved in water.

Answer :→ Ionic Compound

⑶ The process of formation of a solid when solution are mixed.

Answer :→ Precipitation

⑷ A phenomenon by which hydrated salts, on exposure to dry air, lose their water of crystallisation and crumble to powder.

Answer :→ Efflorescence

Answer 2

Answer:

$\huge{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

⑴ The process of heating an ore below it's melting point in the absence of air to get melting oxide.

Answer :→ Calcination

⑵ A compound which conduct electricity in the molten state or when dissolved in water.

Answer :→ Ionic Compound

⑶ The process of formation of a solid when solution are mixed.

Answer :→ Precipitation

⑷ A phenomenon by which hydrated salts, on exposure to dry air, lose their water of crystallisation and crumble to powder.

Answer :→ Efflorescence