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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1501.

When you exhale, the diaphragm ______________________

Answer»

When you exhale, the diaphragm ______________________


1502.

Is a solution of sugar in water homogeneous or heterogeneous?

Answer» Is a solution of sugar in water homogeneous or heterogeneous?
1503.

Suggest separation technique(s) one would need to employ to separate the following mixtures.(a) Potassium chloride, and ammonium chloride(b) Common salt, water, and sand

Answer» Suggest separation technique(s) one would need to employ to separate the following mixtures.



(a) Potassium chloride, and ammonium chloride

(b) Common salt, water, and sand
1504.

Which of the following procedures will give you water that is free from all impurities?

Answer»

Which of the following procedures will give you water that is free from all impurities?


1505.

What is heat ? State its S.I. unit.

Answer» What is heat ? State its S.I. unit.
1506.

Define knitting and dyeing.

Answer» Define knitting and dyeing.
1507.

The circulation of water between ____ and ____ refers to the water cycle.

Answer»

The circulation of water between ____ and ____ refers to the water cycle.


1508.

Nacl

Answer» Nacl
1509.

Pick the right order based on their hardness - wood, iron, paper.

Answer»

Pick the right order based on their hardness - wood, iron, paper.


1510.

Which of the following method can be used for the separation of cream from milk?

Answer»

Which of the following method can be used for the separation of cream from milk?

1511.

Question 02 Pick one material from the following which is completely soluble in water. (a) Chalk Powder (b) Tea leaves (c) Glucose (d) Sawdust

Answer»

Question 02

Pick one material from the following which is completely soluble in water.

(a) Chalk Powder

(b) Tea leaves

(c) Glucose

(d) Sawdust

1512.

How will you find the volume of an object that floats on water?

Answer»

How will you find the volume of an object that floats on water?

1513.

naughty found ground merry cherry weighty wooden

Answer» naughty found ground merry cherry weighty wooden
1514.

Q. What is dipole ? What is dipole moment

Answer» Q. What is dipole ? What is dipole moment
1515.

Cos20° .cos40° .cos60°.cos80°

Answer» Cos20° .cos40° .cos60°.cos80°
1516.

A block of mass of 2.0 kg kept at rest on an inclined plane of inclination 37^° is pulled up the plane by applying a costant force of 20 N parallel to the incline. The force acts for one second. (a) Show that the work done by the applied force does not exceed 40 J. (b) Find the workdone by the force of gravity in that one second if the work done by the applied force is 40 J. (c) Find the kinetic energy of the block at the instant the force ceases to act. Take g -10 m/s

Answer» A block of mass of 2.0 kg kept at rest on an inclined plane of inclination 37^° is pulled up the plane by applying a costant force of 20 N parallel to the incline. The force acts for one second. (a) Show that the work done by the applied force does not exceed 40 J. (b) Find the workdone by the force of gravity in that one second if the work done by the applied force is 40 J. (c) Find the kinetic energy of the block at the instant the force ceases to act. Take g -10 m/s
1517.

You mustbe familiar with the following nursery rhymes:(i) ‘Baabaa black sheep, have you any wool.’(ii) ‘Maryhad a little lamb, whose fleece was white as snow.’Answer thefollowing:(a) Whichparts of the black sheep have wool?(b) Whatis meant by the white fleece of the lamb?

Answer»

You must
be familiar with the following nursery rhymes:



(i) ‘Baa
baa black sheep, have you any wool.’


(ii) ‘Mary
had a little lamb, whose fleece was white as snow.’



Answer the
following:



(a) Which
parts of the black sheep have wool?


(b) What
is meant by the white fleece of the lamb?

1518.

Mass of solid =72g Initial volume of water in measuring cylinder is 24ml Final volume of water in measuring cylinder is 42ml Find the density of solid.

Answer»

Mass of solid =72g

Initial volume of water in measuring cylinder is 24ml

Final volume of water in measuring cylinder is 42ml

Find the density of solid.

1519.

The ability of a substance to get converted to wires is called _______.

Answer»

The ability of a substance to get converted to wires is called _______.


1520.

Read the following sentences and choose the correct option. Jiten worked hard to complete the assignment. Harsha banged her head against the hard surface.

Answer»

Read the following sentences and choose the correct option.

Jiten worked hard to complete the assignment.

Harsha banged her head against the hard surface.


1521.

Why vulcanized rubber is used to make rubber tyres rather than natural rubber?

Answer» Why vulcanized rubber is used to make rubber tyres rather than natural rubber?
1522.

Observe the image above and conclude which among the following kind of a change is clay undergoing when it is moulded into a caterpillar?

Answer»
Observe the image above and conclude which among the following kind of a change is clay undergoing when it is moulded into a caterpillar?
1523.

Question 25 Sugar, salt, mustard oil, sand, sawdust, honey, chalk powder, petal of flower, soil, copper sulphate crystals, glucose, wheat flour are some substances given to Paheli. She wants to know whether these substances are soluble in water or not. Help her in identifying soluble and insoluble substances in water.

Answer»

Question 25

Sugar, salt, mustard oil, sand, sawdust, honey, chalk powder, petal of flower, soil, copper sulphate crystals, glucose, wheat flour are some substances given to Paheli. She wants to know whether these substances are soluble in water or not. Help her in identifying soluble and insoluble substances in water.

1524.

Why do we prefer fossil fuels over wood and coal?

Answer»

Why do we prefer fossil fuels over wood and coal?


1525.

33. Write the chemical equation for rusting of iron

Answer» 33. Write the chemical equation for rusting of iron
1526.

Differentiate betweenpure and impure substances.

Answer»

Differentiate betweenpure and impure substances.
1527.

Your mother stores tap water after it passes through a cloth tied at mouth of container. This process of separation is:

Answer»

Your mother stores tap water after it passes through a cloth tied at mouth of container. This process of separation is:


1528.

Formula for to calculate the dimensional formula

Answer» Formula for to calculate the dimensional formula
1529.

What are the various methods used to separate insoluble solid particles like dust or soil from a liquid mixture? Explain each one of them.

Answer»

What are the various methods used to separate insoluble solid particles like dust or soil from a liquid mixture? Explain each one of them.



1530.

What are piezoelectric crystals?What are its characteristics?

Answer» What are piezoelectric crystals?
What are its characteristics?
1531.

Carbon dioxide, dissolved in water, can dissolve rocks containing calcium carbonate and magnesium carbonate. What are the respective salts formed?

Answer»

Carbon dioxide, dissolved in water, can dissolve rocks containing calcium carbonate and magnesium carbonate. What are the respective salts formed?


1532.

Digestion of food is a

Answer»

Digestion of food is a

1533.

There are very few pure elements or compounds around us. Most substances are mixtures. True or false?

Answer» There are very few pure elements or compounds around us. Most substances are mixtures. True or false?
1534.

Why is a spinneret used to make nylon but is not needed to make cotton or wool fibres?

Answer» Why is a spinneret used to make nylon but is not needed to make cotton or wool fibres?
1535.

Cough syrups need to be shaken before use. Explain the reason.

Answer» Cough syrups need to be shaken before use. Explain the reason.
1536.

Explain water cycle.

Answer»

Explain water cycle.



1537.

The water droplets formed around a glass containing ice comes from

Answer»

The water droplets formed around a glass containing ice comes from


1538.

When butter is kept in the fridge, it is in ____ state.

Answer»

When butter is kept in the fridge, it is in ____ state.


1539.

Water cycle is a natural change.Classify it as a physical or chemical change and reversible or irrerviersible change .Justify your statement.

Answer»

Water cycle is a natural change.Classify it as a physical or chemical change and reversible or irrerviersible change .Justify your statement.

1540.

Matter with definite and constant composition and distinct chemical properties is known as:

Answer»

Matter with definite and constant composition and distinct chemical properties is known as:


1541.

Harangue is opposite in meaning to :

Answer»

Harangue is opposite in meaning to :


1542.

Why magnesium is found in form of a ribbon only?

Answer» Why magnesium is found in form of a ribbon only?
1543.

name two commonly used fire extinguishers

Answer» name two commonly used fire extinguishers
1544.

Présentez votre père en cinq phrases.

Answer» Présentez votre père en cinq phrases.
1545.

2kclo3decomposed to give 2kcl+302Then 4 moles will give?

Answer» 2kclo3decomposed to give 2kcl+302
Then 4 moles will give?
1546.

Will the level of water in a beaker rise when a spoon full of sugar is added to it? Justify your reason.

Answer» Will the level of water in a beaker rise when a spoon full of sugar is added to it? Justify your reason.
1547.

Wy the football with lots of air in it flies more then when there is less air in it?

Answer»

Wy the football with lots of air in it flies more then when there is less air in it?

1548.

Give one example for each of the following types of mixtures.(a) solid-solid homogeneous mixture(b) solid-liquid heterogeneous mixture(c) liquid-gas homogeneous mixture

Answer» Give one example for each of the following types of mixtures.

(a) solid-solid homogeneous mixture

(b) solid-liquid heterogeneous mixture

(c) liquid-gas homogeneous mixture
1549.

What is the critical angle of air bubble in water?

Answer» What is the critical angle of air bubble in water?
1550.

A mixture of iron nail, oil, water, and salt is provided to you. Give stepwise method to separate each of the components from the mixture? [5 MARKS]

Answer»

A mixture of iron nail, oil, water, and salt is provided to you. Give stepwise method to separate each of the components from the mixture? [5 MARKS]