Question # 1

All Acids turn blue litmus.

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Pink

White

Colourless

Red

Actinide series starts after the element

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Actinium

Lanthanum

Osmum

Silver

The forward reaction takes place from

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Right to left

Left to right

Both a and b

None of these

The atomic radii of the elemtns in periodic table.

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Increase from left to right in a period

Do not chage from left to right in a period

Increase from top to bottom in a group

Decrease from top to bottom in a group

Noble gases are non -reactive, because they do not.

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Gain electrons

Lose electrons

Share electrons

All of these

Which of the following is insoluble salt

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KCl

AgCl

NaCl

CaCl2

John Dalton put forward his atomic theory.

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1800

1803

1805

1903

Dative covalent bondis also known as

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Covalent bond

Ionic Bond

Metallic Bond

Coordinate covalent bond

How many electons can be accommodated in S subshell?

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2

6

14

10

The boiling point of alcohal is

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₄₄^oC

78^oC

53^oC

19^oC

Who performed fist experiment to split atom

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Bohr

Newton

Rutherford

Soddy

Whcih period of the modern periodic table is considered as incomplete period.

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4th

5th

6th

7th

--------------- of the energy used by traditional electric bulb is wasted in producing heat.

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60%

50%

70%

90%

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