NEET
Practice Test 9
Previous Solution Next

DIRECTIONS: These are Assertion-Reason type questions. Question contains two statements:Statement-1 (Assertion) and Statement-2 (Reason). Answer these question from the following four options.

Statement-1 Leaching is a process of reduction.
Statement-2 Leaching involves treatment of the ore with a suitable reagent so as to make it soluble while impurities remains insoluble

  • Solution

    Statement-1 is false but statement-2 is true. Leaching is a process of .

DIRECTIONS: These are Assertion-Reason type questions. Question contains two statements:Statement-1 (Assertion) and Statement-2 (Reason). Answer these question from the following four options.

Statement-1 Coke and flux are used in smelting.
Statement-2 The phenomenon in which ore is mixed with suitable flux and coke is heated to fusion is known as smelting.

  • Solution

    Both statemen-1 and statement-2 are true but statement-2 is not the correct explanation of statement-1. Non fusible mass present in ore in mixing with suitable flux are fused which are then reduced by coke to give free metal.

DIRECTIONS: These are Assertion-Reason type questions. Question contains two statements:Statement-1 (Assertion) and Statement-2 (Reason). Answer these question from the following four options.

Statement-1 Zinc can be used while copper cannot be used in the recovery of Ag from the complex [Ag(CN)2]–.
Statement-2 Zinc is a powerful reducing agent than copper.

In the cyanide extraction process of silver from argentite ore, the oxidising and reducing agents used are

  • Solution

UnAttempted

0

Attempted

0

Correct

0

Wrong

0

Complete
General Principles And Processes Of Isolation Of Elements
Attempted     
Correct
UnAttempted
Wrong