Question # 1

The scientific notation of numebr 0.00235 is expressed as.

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2.3 x 10^-4

2.35 x 10^-3

02.3 x 10^-2

0.02.3 x 10^-1

What does a mole represent.

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Number

Mass

Length

Volume

The standard form of 380000000000 is

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3.8 x 10⁸

3.8 x 10¹⁰

3.8 x 10 ⁹

3.8 x 10 ¹¹

Which symbol is used for kilogram in SI Units?

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K

Kg

K

k

The number 0.00580 in scientific notation is

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5.80 x 10 ^-3

5.80 x 10^-4

5.80 x 10⁵

5.80 x 10^-2

In which unit we usualy measure the energy present in the food

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Kilojoules

Calorie

Joule

Mega Joules

One cubic meter is equal to .

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1001 litre

1000 liter

10000 liter

1 liter 1000

What prefix is used for 10 ^-12?

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Mega

Giga

Pico

Tessa

In SI the unit mass is

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kilogram

centimeter

Kelvin

Milimeter

In SI unit of pressure is expressed n

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Newton per meter square

Newton per meter

Joule

Pascal

A measuring cylinder is used to measure

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Mass

Volume

Area

Level of

Which of the following pairs of quantities may be measured in the same unit.

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Heat and temperature

Heat and work

Temperature and area

Length and work

The standard form of 0.00000000034

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3.4 x 10 ^-8

3.4 x 10 ¹⁰

3.4 x 10 ⁹

3.4 x 10 ¹¹

Which unit of voume should usually be used in chemistry

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Cubic centimeter

Milliliter

Liter

Cbicmeter

An interval of 200 ps equivalent to

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0.2 s

0.02 s

2 x 10^-10 s

2 x 10 ^-6 S

A distance of 1 kilometer means

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100 cm

1000 m

10 cm

1000 cm

To change SI units by factors of ten into smaller or bigger units they use.

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Prefixes

Symbols

Abbreviation

Ratio

Which one of the following unit is not a derived unit

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Kilogram

Pascal

Newton

Watt

The eleventh general conference was

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1959

1961

1960

1660

What is the volume of the liquid in this graduated cylinder

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23

24

22

25

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Chemistry 9th Class English Medium Unit 12 Online Test MCQs With Answers

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