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Sonal Chauhan

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Prasant

Asked: December 19, 2023In: Class 10 Science

What happens when aqueous solutions of Sodium sulphate and Barium chloride are mixed? Give a balanced equation for the reaction with state symbols. Name and define the type of chemical reaction involved in the above change.

2024 CBSE NCERT Class 10 science sample question paper and solution

tonny34

Asked: December 19, 2023In: Class 8 Social Science

What do we mean when we speak of law enforcement? Who is responsible for enforcement? Why is enforcement so important?

NCERT Solutions for Class 8 Social Science Civics Chapter 8 Law and Social Justice Question 4 Page No. 111 NCERT Academic Session 2023-2024

Kiara Singh

Asked: December 19, 2023In: Class 10 Science

What is biogas? Describe the steps involved in obtaining biogas.

NCERT Science Class 10 sample question paper with solution 2023-24

Kiara Singh

Asked: December 19, 2023In: Class 10 Science

A variegated leaf with green and yellow patches in used for an experiment to prove that chlorophyll is required for photosynthesis. Before the experiment the green portions (A), and the pale-yellow portions (B), are observed. Now, answer that – what will be the colour of ‘A’ just before and after the starch test? Write also the equation of the process of photosynthesis and mark, as well as validate from which molecule the by-product is obtained.

Rationalised syllabus 2023-2024 CBSE Class 10 sample question paper

Kiara Singh

Asked: December 19, 2023In: Class 10 Science

Pertaining to endocrine system, what will you interpret if- i) You observe swollen neck in people living in the hills ii) Over secretion of Growth Hormone takes place during childhood iii) Facial hair develops in boys aged 13.

CBSE Science Class 10 sample question paper with solution 2023-2024

Kiara Singh

Asked: December 19, 2023In: Class 10 Science

‘Sweet tooth may lead to tooth decay’. Explain why? What is the role of tooth paste in preventing cavities?

Rationalised syllabus CBSE NCERT Science Class 10 sample question paper with solution 2023-2024

Rajshekhar

Asked: December 18, 2023In: Class 10 Science

Mention any one point of difference between Pepsin and Trypsin.

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

Rajshekhar

Asked: December 18, 2023In: Class 10 Science

A student obtained a sharp image of a lighted candle on a screen using a convex lens. Now he wants to focus a distant lamp on a far away electric pole. In which direction should the lens be moved for this purpose with respect to the screen, to get a sharp image on the screen? Justify your answer.

Class 10 CBSE science sample question paper and answer free download 2023-2024

Rajshekhar

Asked: December 18, 2023In: Class 10 Science

(i) Rohit claims to have obtained an image twice the size of object with a concave lens. Is he correct? Give reason for your answer. (ii) Where should an object be placed in case of a convex lens to form an image of same size as of the object? Show with the help of ray diagram the position and the nature of the image formed. (iii) With the help of ray diagram, illustrate the change in position, nature and size of the image formed if the convex lens in case of (ii) is replaced by concave lens of same focal length.

NCERT, CBSE Class 10 science sample question paper 2023-2024 free download

Rajshekhar

Asked: December 18, 2023In: Class 10 Science

A concave lens has a focal length of 50 cm. Calculate its power.

CBSE Class 10 Science sample question paper 2023-2024

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Sonal Chauhan

What happens when aqueous solutions of Sodium sulphate and Barium chloride are mixed? Give a balanced equation for the reaction with state symbols. Name and define the type of chemical reaction involved in the above change.

What is biogas? Describe the steps involved in obtaining biogas.

Pertaining to endocrine system, what will you interpret if- i) You observe swollen neck in people living in the hills ii) Over secretion of Growth Hormone takes place during childhood iii) Facial hair develops in boys aged 13.

‘Sweet tooth may lead to tooth decay’. Explain why? What is the role of tooth paste in preventing cavities?

Mention any one point of difference between Pepsin and Trypsin.

A student obtained a sharp image of a lighted candle on a screen using a convex lens. Now he wants to focus a distant lamp on a far away electric pole. In which direction should the lens be moved for this purpose with respect to the screen, to get a sharp image on the screen? Justify your answer.

A concave lens has a focal length of 50 cm. Calculate its power.

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