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Category: Class 10 Science

NCERT Solutions for Class 10 Science and important questions for CBSE class 10 for session 2020-2021

Mayur Arya

Asked: December 22, 2023In: Class 10 Science

Explain the reason for the following: (i) Aluminium oxide is called an amphoteric oxide. (ii) An iron strip dipped in a blue copper sulphate solution turns the blue solution pale green. (iii) Hydrogen gas is not evolved when most metals react with nitric acid. (iv) Calcium does not occur in free state in nature. (v) Sodium or potassium metals are kept immersed under kerosene.

CBSE NCERT Science Class 10 Sample Question Paper 2023-2024

Mayur Arya

Asked: December 22, 2023In: Class 10 Science

Metal X is found in nature as its sulphide XS. It is used in the galvanisation of iron articles. Identify the metal X. How will you convert this sulphide ore into the metal? Explain with equations.

CBSE Science Class 10 Sample Question Paper 2023-2024 free download with answers

Kiara Singh

Asked: December 22, 2023In: Class 10 Science

Describe the role of prostate gland, seminal vesicle and testes in the human male reproductive system. How is the surgical removal of unwanted pregnancies misused? Explain the role of oral contraceptive pills in preventing conception.

2023-2024 CBSE Science Class 10 Sample Question Paper download

Kiara Singh

Asked: December 22, 2023In: Class 10 Science

Why do multicellular organisms use complex way of reproduction?

NCERT, CBSE Science Class 10 Sample Question Paper 2023-2024 download with solutions

Kiara Singh

Asked: December 22, 2023In: Class 10 Science

What is visible spectrum? Why is red used as the stopping light at traffic signals? (iii)Two triangular glass prisms are kept together connected through their rectangular side. A light beam is passed through one side of the combination. Will there be any dispersion? Justify your answer.

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

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