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Prasant

Asked: December 18, 2023In: Class 10 Science

Explain the ways in which glucose is broken down in absence of oxygen.

2023-2024 CBSE science class 10th sample question paper and answer pdf free download

Prasant

Asked: December 18, 2023In: Class 10 Science

In the electrolysis of water, a) Name the gas collected at anode and cathode b) Why is the volume of gas collected at one electrode double than the other? c) What would happen if dilute H2SO4 is not added to water?

Latest CBSE class 10 science SQP sample question paper and answer 2023-2024 free download

Prasant

Asked: December 16, 2023In: Class 10 Science

The gene for red hair is recessive to the gene for black hair. What will be the hair colour of a child if he inherits a gene for red colour from his mother and a gene for black hair from his father? Express with the help of flow chart.

CBSE class 10 science sample question paper with answer 2023-2024

Prasant

Asked: December 16, 2023In: Class 10 Science

Explain the formation of rainbow in the sky with the help of a diagram. List the three phenomena of light involved. Which colour – violet or red appears at top of the rainbow? B. What is the difference in colours of the sun observed during sunrise/sunset and noon? Give explanation for each.

Latest CBSE Science Class 10 Sample Question Paper pdf download 2023-2024

Mayur Arya

Asked: December 16, 2023In: Class 10 Science

A student has to project a three times magnified image of a candle flame on a wall. Name the type of the lens (converging/ diverging) required for the purpose. It the candle flame is at a distance of 6 m from the wall, find the focal length of the lens.

CBSE class 10 science sample question paper pdf free download 2023-2024

Mayur Arya

Asked: December 16, 2023In: Class 10 Science

List any four methods of contraception used by humans. How does the use of three methods have a direct effect on the heath and prosperity of a family?

NCERT CBSE class 10 science sample question paper with answer 2023-2024

Mayur Arya

Asked: December 16, 2023In: Class 10 Science

Explain with the help of labelled diagrams the development that takes place in each of the body parts of a Planaria where body is cut into three pieces. None this process and give an example of an organism in which a similar process can be observed.

CBSE class 10 science sample question paper with answer 2023-2024 download

Subham Kumar

Asked: December 16, 2023In: Class 10 Science

What are isomers? “Isomers of the first three members of alkane series are not possible”. Give reason to justify this statement and draw structures of two isomers of butane, C4 H10.

NCERT CBSE class 10 science sample question paper 2023-2024

Subham Kumar

Asked: December 16, 2023In: Class 10 Science

When a concave mirror is placed facing Sunlight, the Sun’s rays or sun light converge to a point 10 cm from the mirror. Now, if you place 2 cm long candles flame 20 cm away on the principal axis of the mirror, where would you specify a place a screen to obtain the image of the candle? What would see the size of a image? Draw a ray diagram to justify your answer.

CBSE Class 10 science sample question paper for board exam 2023-2024

Subham Kumar

Asked: December 16, 2023In: Class 10 Science

List two secondary sexual characters of males that are different from that of females.

CBSE Class 10 Science sample question paper 2023-2024

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Explain the ways in which glucose is broken down in absence of oxygen.

In the electrolysis of water, a) Name the gas collected at anode and cathode b) Why is the volume of gas collected at one electrode double than the other? c) What would happen if dilute H2SO4 is not added to water?

The gene for red hair is recessive to the gene for black hair. What will be the hair colour of a child if he inherits a gene for red colour from his mother and a gene for black hair from his father? Express with the help of flow chart.

Explain the formation of rainbow in the sky with the help of a diagram. List the three phenomena of light involved. Which colour – violet or red appears at top of the rainbow? B. What is the difference in colours of the sun observed during sunrise/sunset and noon? Give explanation for each.

A student has to project a three times magnified image of a candle flame on a wall. Name the type of the lens (converging/ diverging) required for the purpose. It the candle flame is at a distance of 6 m from the wall, find the focal length of the lens.

List any four methods of contraception used by humans. How does the use of three methods have a direct effect on the heath and prosperity of a family?

Explain with the help of labelled diagrams the development that takes place in each of the body parts of a Planaria where body is cut into three pieces. None this process and give an example of an organism in which a similar process can be observed.

What are isomers? “Isomers of the first three members of alkane series are not possible”. Give reason to justify this statement and draw structures of two isomers of butane, C4 H10.

List two secondary sexual characters of males that are different from that of females.

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