Sonal Chauhan – Followed – Page 31 – Tiwari Academy Discussion

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Sonal Chauhan

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Srushti

Asked: December 26, 2023In: Class 10 Science

Ravi cultivated mustard, a plant with bisexual flowers, on his farm. His plants were diseased due to a gene defect and therefore had reduced yield. Ravi removed the stamens from the diseased plants and also planted fresh disease-free mustard plants where he removed the pistils. How will Ravi’s strategy help in improving the yield of mustard?

Bisexual flowers, possessing both male and female reproductive organs, facilitate self-pollination or cross-pollination. Examples include hibiscus and lilies, enhancing reproductive flexibility in plant species.

Mayur Arya

Asked: December 23, 2023In: Class 10 Science

List any two observations when Ferrous Sulphate (FeSO₄) is heated in a dry test tube?

Ferrous sulfate is a chemical compound with the formula FeSO₄, commonly used as a supplement to treat iron deficiency anemia and in various industrial applications, including water treatment and dyeing.

Prasant

Asked: December 22, 2023In: Class 10 Science

How will you create an artificial aquatic ecosystem, which is self-sustainable?

CBSE Class 10 Science Sample Question Paper SQP 2023-2024

Prasant

Asked: December 21, 2023In: Class 10 Science

i) What is meant by power of a lens? (ii) You have three lenses L1, L2 and L3 of powers +10D, +5D and -10D respectively. State the nature and focal length of each lens. (iii) Explain which of the three lenses will form a virtual and magnified image of an object placed at 15 cm from the lens. (iv) Draw the ray diagram in support of your answer.

CBSE Class 10 Science Sample Question Paper new 2023-2024 with Solutions

Prasant

Asked: December 21, 2023In: Class 10 Science

Two lamps, one rated 100 W at 220 V and the other 200 W at 220V are connected (i) in series and (ii) in parallel to electric main supply of 220V. Find the current drawn in each case.

Rationalised syllabus CBSE Class 10 Science Sample Question Paper 2023-2024

Prasant

Asked: December 21, 2023In: Class 10 Science

The figure below shows three cylindrical copper conductors along with their face areas and lengths. Compare the resistance and the resistivity of the three conductors. Justify your answer.

The figure below shows three cylindrical copper conductors along with their face areas and lengths. Compare the resistance and the resistivity of the three conductors. Justify your answer.

CBSE Class 10 Science Sample Question Paper new 2023-2024 with Solutions

Prasant

Asked: December 21, 2023In: Class 10 Science

The flow of energy between various or many components of the environment has been extensively studied. List four findings.

CBSE Science Class 10 SQP, Sample Question Paper 2023-2024

Prasant

Asked: December 21, 2023In: Class 10 Science

a) How will you show experimentally that metals are good conductors of heat. b) Describe the extraction of Mercury metal from its ore Cinnabar (HgS).

NCERT, Rationalised syllabus, CBSE Class 10 Science Sample Question Paper 2023-2024

Kiara Singh

Asked: December 21, 2023In: Class 10 Science

A compound A (C2H4O2) reacts with Na metal to form a compound ‘B’ and evolves a gas which burns with a pop sound. Compound ‘A’ on treatment with an alcohol ‘C’ in presence of an acid forms a sweet-smelling compound ‘D’ (C4H8O2). On addition of NaOH to ‘D’ gives back B and C. Identify A, B, C and D write the reactions involved.

CBSE class 10 science sample question paper SQP 2023-2024

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

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