Match List- I with List- II . List- I (Ore) List- II (Element Present) a Kernite p Tin b Cassiterite q Boron c Calamine r Fluorine d Cryolite s Zinc Choose the most appropriate answer from the options given below:

a → q , b → p , c → s , d → r

a → r , b → p , c → q , d → s

a → q , b → s , c → p , d → r

a → p , b → r , c → s , d → q

Match List- I with List- II . List- I List- II (a) Siderite (i) Cu (b) Calamine (ii) Ca (c) Malachite (iii) Fe (d) Cryolite (iv) Al (v) Zn Choose the correct answer from the options given below:

a → iii , b → v , c → i , d → iv

a → iii , b → i , c → v , d → ii

a → i , b → ii , c → v , d → iii

a → i , b → ii , c → iii , d → iv

Match List-I and List-II : List-I List-II a Haematite i Al 2 O 3 · xH 2 O b Bauxite ii Fe 2 O 3 c Magnetite iii CuCO 3 · Cu ( OH ) 2 d Malachite iv Fe 3 O 4 Choose the correct answer from the options given below :

( a ) - ( ii ) , ( b ) - ( i ) , ( c ) - ( iv ) , ( d ) - ( iii )

( a )-( ii ), ( b )-( iii ),( c )-( i ),( d )-( iv )

( a )-( iv ) , ( b ) - ( i ) , ( c ) - ( ii ) , ( d ) - ( iii )

( a )-( i ), ( b )-( iii ), ( c )-( ii ), ( d )-( iv )

Match List - I with List - II. List-I (Metal) List-II (Ores) (a) Aluminium (i) Siderite (b) Iron (ii) Calamine (c) Copper (iii) Kaolinite (d) Zinc (iv) Malachite Choose the correct answer from the options given below:

(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)

(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

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Consider the following flow chart

A, B and C respectively are

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Important Questions on General Principles and Processes of Isolation of Elements

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Which of the following is not an oxide ore?

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Which one is malachite from the following?

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

The one that is not a carbonate ore is:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Match List- $I$ with List- $II$ .

	List- $I$ (Ore)		List- $II$ (Element Present)
$(a)$	Kernite	$(p)$	Tin
$(b)$	Cassiterite	$(q)$	Boron
$(c)$	Calamine	$(r)$	Fluorine
$(d)$	Cryolite	$(s)$	Zinc

Choose the most appropriate answer from the options given below:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Sulphide ores are common for the metals:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Match List- $I$ with List- $II$ .

List- $I$		List- $II$
(a)	Siderite	(i)	$Cu$
(b)	Calamine	(ii)	$Ca$
(c)	Malachite	(iii)	$Fe$
(d)	Cryolite	(iv)	$Al$
		(v)	$Zn$

Choose the correct answer from the options given below:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Assertion: For the extraction of iron, haematite ore is used.
Reason: Haematite is a carbonate ore of iron.

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Match List-I and List-II :

	List-I		List-II
a	Haematite	i	${Al}_{2} O_{3} \cdot {xH}_{2} O$
b	Bauxite	ii	${Fe}_{2} O_{3}$
c	Magnetite	iii	${CuCO}_{3} \cdot Cu (OH)_{2}$
d	Malachite	iv	${Fe}_{3} O_{4}$

Choose the correct answer from the options given below :

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Which one of the following ores is known as Malachite:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Name the most common ore of the metal aluminium from which the metal is extracted. Write the chemical formula of the ore.

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Match List - I with List - II.

List-I (Metal)		List-II (Ores)
(a)	Aluminium	(i)	Siderite
(b)	Iron	(ii)	Calamine
(c)	Copper	(iii)	Kaolinite
(d)	Zinc	(iv)	Malachite

Choose the correct answer from the options given below:

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

"Metals are usually not found as nitrates in their ores".

Out of the following two (a and b) reasons which is or are true for the above observation?

(a) Metal nitrates are highly unstable.

(b) Metal nitrates are highly soluble in water.

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

The ore that contains both iron and copper is:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Malachite is an ore of

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Occurrence of Metals

Oxidation state of copper is