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Chemistry Quiz test 2

Chemistry Quiz test 2

: a science that deals with the composition, structure, and properties of substances and with the transformations that they undergo. 2a : the composition and chemical properties of a substance the chemistry of iron.

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Quiz Questions And Answers

Which of the following can be found as pollutants in the drinking water in some parts of India? 1. Arsenic, 2. Sorbitol, 3. Fluoride, 4. Formaldehyde, 5. Uranium Select the corre

1 and 3
2, 4 and 5
1, 3 and 5

When a helium atom loses an electron it becomes:

a proton
a positive helium ion
a negative helium ion

What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper?

The paper ignites
There is a crackling sound
There is a violent explosion

Hydrogen peroxide is an effective sterilizing agent. Which one of the following product results when it readily loses active oxygen?

Water
Hydrogen
Nasant Hydrogen

The purest form of Iron is:

Steel
Pig iron
Wrought iron

Heavy metals got their name because compared to other atoms they have:

higher atomic masses
higher atomic numbers
higher densities

Combustion is a:

biological process
physical process
chemical process

Which of the following is not a form of carbon?

Soot
Hematite
Graphite

Which of the following is used in pencils?

Graphite
Sulphur
Phosphorus

The rusting of metal iron in air needs both:

oxygen and moisture
water and paint
oxygen and grease
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