Elements And Metals Quiz 2 - General Science


20 Questions MCQ Test General Knowledge | Elements And Metals Quiz 2 - General Science


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Attempt Elements And Metals Quiz 2 - General Science | 20 questions in 40 minutes | Mock test for Current Affairs preparation | Free important questions MCQ to study General Knowledge for Current Affairs Exam | Download free PDF with solutions
QUESTION: 1

When an iron nail gets rusted, iron oxide is formed

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QUESTION: 2

Galvanised iron sheets have a coating of

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QUESTION: 3

Among the various allotropes of carbon,

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QUESTION: 4

The group of metals Fe, Co, Ni may best called as

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QUESTION: 5

Heavy water is

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QUESTION: 6

The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of

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QUESTION: 7

The element common to all acids is

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QUESTION: 8

Non stick cooking utensils are coated with

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QUESTION: 9

Monazite is an ore of

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QUESTION: 10

Carbon, diamond and graphite are together called

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QUESTION: 11

Potassium nitrate is used in

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QUESTION: 12

Permanent hardness of water may be removed by the addition of

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QUESTION: 13

Soda water contains

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QUESTION: 14

The most important ore of aluminium is

Solution: Bauxite is an aluminium ore and is the main source of aluminium.
QUESTION: 15

Most soluble in water is

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QUESTION: 16

Which of the following was to be discovered first in the chromospheres of the sun?

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QUESTION: 17

Which of the following is in liquid form at room temperature?

Solution:

The only liquid elements at standard temperature and pressure are bromine (Br) and mercury (Hg). Although, elements caesium (Cs), rubidium (Rb), Francium (Fr) and Gallium (Ga) become liquid at or just above room temperature.

QUESTION: 18

Sodium metal is kept under

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QUESTION: 19

Which of the following are the ingredients of gun metal?

Solution:

Modern admiralty gunmetal is composed of 88 percent copper, 10 percent tin, and 2 percent zinc and is used for gears and bearings that are to be subjected to heavy loads and low speeds.

QUESTION: 20

From which mineral is radium obtained?

Solution:
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