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GK > Page No. 28-29 > Flashcards

Page No. 28-29 Flashcards

1
Q

Plaster of Paris

A

Calcium sulphate

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2
Q

Soda ash

A

Sodium carbonate

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3
Q

Oil of vitriol

A

Sulphuric acid

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4
Q

Vinegar

A

Acetic acid

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5
Q

Bleach

A

Sodium hypochlorite

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6
Q

Laughing Gas

A

Nitrous oxide

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7
Q

Fools gold

A

Iron pyrite

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8
Q

Brine

A

Aqueous sodium chloride

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9
Q

Chloroform

A

Trichloromethane

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10
Q

Chalk

A

Calcium carbonate

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11
Q

Quartz

A

Silicon dioxide

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12
Q

Aqua regia

A

A mixture of concentrated nitric and hydrochloric acid

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13
Q

– Is an acid present car batteries

A

Sulphuric acid

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14
Q

– Is used in the manufacture of class and ceramics

A

Silica

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15
Q

In a – the elements are arranged in the order of increasing atomic number

A

Periodic table

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16
Q

Lemons are rich in – acid

A

Citric

17
Q

– Is an acid that dissolves in gold

A

Aqua regia

18
Q

– Is used as a preservative in the packing of meat and in pickling

A

Salt

19
Q

– Was a very first metal used by humans in the neolithic period

A

Copper

20
Q

– Is the process of converting liquid vegetable oil to solid or semi solid fats

A

Hydrogenation

21
Q

And – is a metal made from a combination of two metallic elements to increase its strength and resistance to corrosion

A

Alloy

22
Q

A – is obtained when an acid is mixed with the base

A

Salt

23
Q

– Is a term used to describe a compound, which acts as an acid and a base

A

Amphoteric

24
Q

– chromatography, is a technique used to separate chemical based on colour

A

Paper

25
Q

– Is used to develop photograph negatives

A

Silver bromide

26
Q

– Is used to make soap and detergent

A

Alkali

27
Q

– Is used to make casts to repair broken bones

A

Plaster of Paris

GK (7 decks)

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