Question

Kindly give me the answers of question given below

Answer 1

option 3 is the correct answer.

Answer 2

$\bold{ELECTROMETALLURGY}$

Electrometallurgy is the large scale process of obtaining pure metal from its concentrated ore.

▶$\bold{ROASTING }$

Heating of concentrated ore of a metal to reduce it to its oxide in presence air before it reaches to its melting point is called roasting.

✳Mainly sulphide ores are roasted.

▶$\bold{CALCINATION }$

Heating of concentrated ore of a metal it to its oxide in absence of air before it reaches to its melting point is called calcination.

✳Mainly carbonate ores are calcinated.

So, according to above information we can convey that

▶A is a carbonate ore ,since its being calcinated.

▶B is a sulphide ore, since its being roasted.

▶C is oxide of metal ,as stated above that roasting and calcination is done to convert concentrated ore of a metal into its metal oxide either in absence or in presence of air, depending upon which ore it is.

So,

$\large \boxed{ \green{\bf{OPTION \: 3 \: IS \: CORRECT}}}$