Statement 1: The sulphide ore is converted into its oxides in the absence of air.
Statement 2: The carbonate ores is converted into oxides in the presence of excess air.

Both statements are false.

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Both statements are true.

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Statement 1 is true and statement 2 is false.

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Statement 1 is false and statement 2 is true.

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Solution

The correct option is A Both statements are false.
Metals are easier to be extracted in its oxide state. Sulphide ores are converted into its oxides by the process of roasting. In this process, ore is heated in the presence of excess of air.
Carbonate ores are converted into its oxides by the process of calcination. In this process, the ore is heated in the absence of air.

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Similar questions

Q. Statement 1: The sulphide ore is converted into its oxides in the absence of air.
Statement 2: The carbonate ores is converted into oxides in the presence of excess air.

Q. Statement 1: The reaction of iron(III) oxide (

{F e}_{2} O_{3}

) with aluminium is used to join railway tracks or cracked machine parts.
Statement 2: Some of the displacement reactions are highly exothermic reactions.

(a) Statement 1 is true, but statement 2 is false.
(b) Statement 1 is false but statement 2 is true.
(c) Statement 1 and 2 both are true but 2 is not the correct explanation of 1.
(d) Statement 1 and 2 both are true and 2 is the correct explanation of 1.

[1 Mark]

What happens when aluminium is heated at $800^{0} C$ ?

Statement 1: Aluminium reacts with air to form chlorides.

Statement 2: On heating aluminium at $800^{0} C$ , it burns to form its oxides and nitrides.

STATEMENT - 1: $^{20} N e$ and $^{22} N e$ are isotopes.
STATEMENT - 2: The isotopes of noble gases don't exist because they are inert.

Statement 1: Sodium hydroxide can be used to treat acidity.
Statement 2 : Mild bases can be used as antacids.

 (A) Both statements are true
(B) Statement 1 is true but statement 2 is false
(C) Statement 2 is true but statement 1 is false
(D) Both statements are false

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Statement 1: The sulphide ore is converted into its oxides in the absence of air. Statement 2: The carbonate ores is converted into oxides in the presence of excess air.

Statement 1: The sulphide ore is converted into its oxides in the absence of air.
Statement 2: The carbonate ores is converted into oxides in the presence of excess air.