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 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 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 (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)

EASY

Earn 100

Which of the following is an ore of mercury?

50% studentsanswered this correctly

Important Questions on Metallurgy

EASY

Science>Chemistry>Metallurgy>Occurence of Metals

Oxidation state of copper is

+ 1

EASY

Science>Chemistry>Metallurgy>Occurence of Metals

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

MEDIUM

Science>Chemistry>Metallurgy>Occurence of Metals

Which of the following is not an oxide ore?

EASY

Science>Chemistry>Metallurgy>Occurence of Metals

Identify the correct set of sulphide ores from the following

EASY

Science>Chemistry>Metallurgy>Occurence of Metals

Sulphide ores are common for the metals:

EASY

Science>Chemistry>Metallurgy>Occurence of Metals

Malachite is an ore of

MEDIUM

Science>Chemistry>Metallurgy>Occurence of Metals

The one that is not a carbonate ore is:

EASY

Science>Chemistry>Metallurgy>Occurence 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

Science>Chemistry>Metallurgy>Occurence of Metals

Which one of the following ores is known as Malachite:

EASY

Science>Chemistry>Metallurgy>Occurence of Metals

The ore that contains the metal in the form of fluoride is known as which of the following?

EASY

Science>Chemistry>Metallurgy>Occurence 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:

MEDIUM

Science>Chemistry>Metallurgy>Occurence 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

Science>Chemistry>Metallurgy>Occurence of Metals

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