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CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306839 A measured temperature on Fahrenheit scale is $100^{\circ} F$ . It corresponds to ____ $^{\circ} C$ .

1 37.78

2 101.8

3 57.8

4 125.9

Explanation:

$^{\circ} F = \frac{9}{5} t^{\circ} C + 32$
$∴ 100 = \frac{9}{5} t^{\circ} C + 32$
$∴ 100 - 32 = \frac{9}{5} t^{\circ} C$
$∴ \frac{68 \times 5}{9} {= t}^{\circ} C$
$∴ t = {37.78}^{\circ} C$

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306840 The temperature of $3 2^{^{\circ}} C$ is equivalent to

1

89 . 6^{^{\circ}} F

2

85 . 6^{^{\circ}} F

3

7 0^{^{\circ}} F

4

6 9^{^{\circ}} F

Explanation:

The temperature of °F and °C are related to each other by the following relationship:
$^{\circ} F = \frac{9}{5} (^{\circ} C) + 32$
$^{^{\circ}} F = \frac{9 \times 32}{5} + 32 = 57 .6 + 32$
$^{^{\circ}} F = 89 .6$
The temperature of $3 2^{^{\circ}} C$ is equivalent to $89 . 6^{^{\circ}} F$ .

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306841 What is the SI unit of density ?

1

g c m^{- 3}

2

g m^{- 3}

3

k g m^{- 3}

4

k g c m^{- 3}

Explanation:

Density of substance is defined as its amount of mass per unit volume. So, SI unit of density can be obtained by using the following relation.
$S I u n i t o f d e n s i t y = \frac{S I u n i t o f m a s s}{S I u n i t o f v o l u m e}$
$\frac{k g}{m^{3}} o r k g m^{- 3}$

MHTCET - 2018

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306842 Read the following and choose the incorrect statements.
(I) Both weight and mass are same quantities used for measurement of amount of matter present in a substance.
(II) Mass and weight of a substance vary from one place to another due to change in gravity.
(III) SI unit of mass is kilogram and while SI unit of weight is gram.

1 (I) and (III)

2 (II) and (III)

3 (I) and (II)

4 All of these

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306839 A measured temperature on Fahrenheit scale is $100^{\circ} F$ . It corresponds to ____ $^{\circ} C$ .

1 37.78

2 101.8

3 57.8

4 125.9

Explanation:

$^{\circ} F = \frac{9}{5} t^{\circ} C + 32$
$∴ 100 = \frac{9}{5} t^{\circ} C + 32$
$∴ 100 - 32 = \frac{9}{5} t^{\circ} C$
$∴ \frac{68 \times 5}{9} {= t}^{\circ} C$
$∴ t = {37.78}^{\circ} C$

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306840 The temperature of $3 2^{^{\circ}} C$ is equivalent to

1

89 . 6^{^{\circ}} F

2

85 . 6^{^{\circ}} F

3

7 0^{^{\circ}} F

4

6 9^{^{\circ}} F

Explanation:

The temperature of °F and °C are related to each other by the following relationship:
$^{\circ} F = \frac{9}{5} (^{\circ} C) + 32$
$^{^{\circ}} F = \frac{9 \times 32}{5} + 32 = 57 .6 + 32$
$^{^{\circ}} F = 89 .6$
The temperature of $3 2^{^{\circ}} C$ is equivalent to $89 . 6^{^{\circ}} F$ .

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306841 What is the SI unit of density ?

1

g c m^{- 3}

2

g m^{- 3}

3

k g m^{- 3}

4

k g c m^{- 3}

Explanation:

Density of substance is defined as its amount of mass per unit volume. So, SI unit of density can be obtained by using the following relation.
$S I u n i t o f d e n s i t y = \frac{S I u n i t o f m a s s}{S I u n i t o f v o l u m e}$
$\frac{k g}{m^{3}} o r k g m^{- 3}$

MHTCET - 2018

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306842 Read the following and choose the incorrect statements.
(I) Both weight and mass are same quantities used for measurement of amount of matter present in a substance.
(II) Mass and weight of a substance vary from one place to another due to change in gravity.
(III) SI unit of mass is kilogram and while SI unit of weight is gram.

1 (I) and (III)

2 (II) and (III)

3 (I) and (II)

4 All of these

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306839 A measured temperature on Fahrenheit scale is $100^{\circ} F$ . It corresponds to ____ $^{\circ} C$ .

1 37.78

2 101.8

3 57.8

4 125.9

Explanation:

$^{\circ} F = \frac{9}{5} t^{\circ} C + 32$
$∴ 100 = \frac{9}{5} t^{\circ} C + 32$
$∴ 100 - 32 = \frac{9}{5} t^{\circ} C$
$∴ \frac{68 \times 5}{9} {= t}^{\circ} C$
$∴ t = {37.78}^{\circ} C$

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306840 The temperature of $3 2^{^{\circ}} C$ is equivalent to

1

89 . 6^{^{\circ}} F

2

85 . 6^{^{\circ}} F

3

7 0^{^{\circ}} F

4

6 9^{^{\circ}} F

Explanation:

The temperature of °F and °C are related to each other by the following relationship:
$^{\circ} F = \frac{9}{5} (^{\circ} C) + 32$
$^{^{\circ}} F = \frac{9 \times 32}{5} + 32 = 57 .6 + 32$
$^{^{\circ}} F = 89 .6$
The temperature of $3 2^{^{\circ}} C$ is equivalent to $89 . 6^{^{\circ}} F$ .

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306841 What is the SI unit of density ?

1

g c m^{- 3}

2

g m^{- 3}

3

k g m^{- 3}

4

k g c m^{- 3}

Explanation:

Density of substance is defined as its amount of mass per unit volume. So, SI unit of density can be obtained by using the following relation.
$S I u n i t o f d e n s i t y = \frac{S I u n i t o f m a s s}{S I u n i t o f v o l u m e}$
$\frac{k g}{m^{3}} o r k g m^{- 3}$

MHTCET - 2018

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306842 Read the following and choose the incorrect statements.
(I) Both weight and mass are same quantities used for measurement of amount of matter present in a substance.
(II) Mass and weight of a substance vary from one place to another due to change in gravity.
(III) SI unit of mass is kilogram and while SI unit of weight is gram.

1 (I) and (III)

2 (II) and (III)

3 (I) and (II)

4 All of these

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306839 A measured temperature on Fahrenheit scale is $100^{\circ} F$ . It corresponds to ____ $^{\circ} C$ .

1 37.78

2 101.8

3 57.8

4 125.9

Explanation:

$^{\circ} F = \frac{9}{5} t^{\circ} C + 32$
$∴ 100 = \frac{9}{5} t^{\circ} C + 32$
$∴ 100 - 32 = \frac{9}{5} t^{\circ} C$
$∴ \frac{68 \times 5}{9} {= t}^{\circ} C$
$∴ t = {37.78}^{\circ} C$

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306840 The temperature of $3 2^{^{\circ}} C$ is equivalent to

1

89 . 6^{^{\circ}} F

2

85 . 6^{^{\circ}} F

3

7 0^{^{\circ}} F

4

6 9^{^{\circ}} F

Explanation:

The temperature of °F and °C are related to each other by the following relationship:
$^{\circ} F = \frac{9}{5} (^{\circ} C) + 32$
$^{^{\circ}} F = \frac{9 \times 32}{5} + 32 = 57 .6 + 32$
$^{^{\circ}} F = 89 .6$
The temperature of $3 2^{^{\circ}} C$ is equivalent to $89 . 6^{^{\circ}} F$ .

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306841 What is the SI unit of density ?

1

g c m^{- 3}

2

g m^{- 3}

3

k g m^{- 3}

4

k g c m^{- 3}

Explanation:

Density of substance is defined as its amount of mass per unit volume. So, SI unit of density can be obtained by using the following relation.
$S I u n i t o f d e n s i t y = \frac{S I u n i t o f m a s s}{S I u n i t o f v o l u m e}$
$\frac{k g}{m^{3}} o r k g m^{- 3}$

MHTCET - 2018

CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306842 Read the following and choose the incorrect statements.
(I) Both weight and mass are same quantities used for measurement of amount of matter present in a substance.
(II) Mass and weight of a substance vary from one place to another due to change in gravity.
(III) SI unit of mass is kilogram and while SI unit of weight is gram.

1 (I) and (III)

2 (II) and (III)

3 (I) and (II)

4 All of these

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