Chemistry Class 11 MCQ'S test of Lesson 1 (Some basic concepts of chemistry)

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Objective type questions

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What is the normality of a 1 M solution *

1 point

1.0 N

2.0 N

3.0 N

What is the concentration of nitrate ions if equal volumes of 0.1 M AgNO3 and 0.1 M NaCl are mixed together1 *

1 point

0.05 M

0.25 M

0.75 M

The -ve charged particles is called: *

1 point

Anion

Cation

Radical

The total number of ions present in 111 g of CaCl2 is *

1 point

4 Moles

3 Moles

2 Moles

An organic compound contains carbon , hydrogen and oxygen. Its elemental analysis gave C, 38.71% and H, 9.67%. The empirical formula of the compound would be *

1 point

CH30

CH40

CHO

Which of the following cannot give iodometric titrations *

1 point

FE³+

PB²+

CU²+

The S.I unit of temperature is *

1 point

Kelvin

Celsius

Fahrenheit

The prefix 10¹⁸ is _______ *

1 point

giga

kilo

exa

Which of the following pairs of gases contains the same number of molecules? *

1 point

16 g of O2 and 14 g of N2

6 g of O2 and 22 g of CO2

32 g of CO2 and 32g of N2

A measured temperature on Fahrenheit scale is 200F. What will this reading be on the Celsius Scale? *

1 point

92.2°C

93.3°C

94.4°C

A pure substance which contains only one type of atom is called *

1 point

an element

a solid

a liquid

The significant figures in 0.00051 are 3 *

1 point

True

False

The mass of an atom of carbon is 1.99 x 10 -23 g *

1 point

True

False

Iodised table salt is a homogeneous mixture *

1 point

True

False

The percentage of nitrogen in urea is about 46 *

1 point

True

False

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