NEET  >  Topic-wise MCQ Tests for NEET  >  Test: Occurrence & Extraction Download as PDF

Test: Occurrence & Extraction


Test Description

10 Questions MCQ Test Topic-wise MCQ Tests for NEET | Test: Occurrence & Extraction

Test: Occurrence & Extraction for NEET 2022 is part of Topic-wise MCQ Tests for NEET preparation. The Test: Occurrence & Extraction questions and answers have been prepared according to the NEET exam syllabus.The Test: Occurrence & Extraction MCQs are made for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Occurrence & Extraction below.
Solutions of Test: Occurrence & Extraction questions in English are available as part of our Topic-wise MCQ Tests for NEET for NEET & Test: Occurrence & Extraction solutions in Hindi for Topic-wise MCQ Tests for NEET course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt Test: Occurrence & Extraction | 10 questions in 15 minutes | Mock test for NEET preparation | Free important questions MCQ to study Topic-wise MCQ Tests for NEET for NEET Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you?
Test: Occurrence & Extraction - Question 1

Cryolite is the chief ore of

Detailed Solution for Test: Occurrence & Extraction - Question 1

The correct answer is Option A.
It was historically used as an ore of aluminium and later in the electrolytic processing of the aluminium-rich oxide ore bauxite (itself a combination of aluminium oxide minerals such as gibbsite, boehmite and diaspore).

Test: Occurrence & Extraction - Question 2

 Composition of Siderite is

Test: Occurrence & Extraction - Question 3

Calamine is the ore of

Detailed Solution for Test: Occurrence & Extraction - Question 3

The correct answer is Option B.

Calamine is an ore of zinc. It is zinc carbonate ZnCO3.

Test: Occurrence & Extraction - Question 4

Malachite is an ore of:

Detailed Solution for Test: Occurrence & Extraction - Question 4

The correct answer is Option A.
Malachite is a green copper carbonate hydroxide mineral with formula Cu2(CO3)(OH)2. It is of minor importance today as an ore of copper because it is usually found in small quantities and can be sold for higher prices for other types of use.

Test: Occurrence & Extraction - Question 5

When a metal is to be extracted from its ore and if the gangue associated with the ore is silica ,then

Detailed Solution for Test: Occurrence & Extraction - Question 5

Correct Answer is option D
 
(Acidic Impurity) SiO2+ (Basic Flux) CaO→ (Slag) CaSiO3

Test: Occurrence & Extraction - Question 6

 Roasting is done generally in case of the

Detailed Solution for Test: Occurrence & Extraction - Question 6

In this process sulphide ores are converted into oxide ores
2ZnS + 3O2 → 2ZnO + 2SO2

Test: Occurrence & Extraction - Question 7

The metal always found in free state is

Detailed Solution for Test: Occurrence & Extraction - Question 7

The correct answer is Option C.

A native metal is any metal that is found in its metallic form, either pure or as an alloy, in nature.
For example, gold.
Gold exists as it is less reactive and does not form any kind of alloys in its natural state.

Test: Occurrence & Extraction - Question 8

Bauxite is the chief ore of:

Detailed Solution for Test: Occurrence & Extraction - Question 8

The correct answer is option D
Aluminium
Bauxite is the most important ore of aluminium which contains only 30–54% alumina, Al2O3; the rest is a mixture of silica, various iron oxides, and titanium dioxide along with trace amounts of zinc, phosphorus, nickel, vanadium etc.
 

Test: Occurrence & Extraction - Question 9

Dolomite is a mineral of

Detailed Solution for Test: Occurrence & Extraction - Question 9

The correct answer is Option D.
Dolomite : CaMg(CO3)2
It contains both calcium and magnesium.

Test: Occurrence & Extraction - Question 10

Pyrolusite is a/an

Detailed Solution for Test: Occurrence & Extraction - Question 10

The answer is option B
Pyrolusite is MnO2. Thus, it is an oxide ore. It is a black, amorphous appearing mineral, often with a granular, fibrous or columnar structure, sometimes forming reniform crusts.

Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Information about Test: Occurrence & Extraction Page
In this test you can find the Exam questions for Test: Occurrence & Extraction solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Occurrence & Extraction, EduRev gives you an ample number of Online tests for practice