CBSE Daily Practice Questions for Class 10 Science 30 August 2023

CBSE Class 10 Science 2024 Daily Practice Questions: With multiple formulas and application-based concepts, practising on a regular basis for CBSE 10th Science examination can help students ease their preparation burden. Here, daily practice questions for 30 August 2023 for CBSE Class 10 Science 2024 are given here. Five types of questions will be asked in the paper and the daily practice questions are given across all five question types.

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CBSE Daily Practice Questions for Class 10 Science 30 August 2023

For 30 August 2023, here are the daily practice questions from CBSE 10 Science 2024 syllabus:

Question 1: Multiple-Choice Question

The resistance of a wire does not depend on its:

Question 2: Very Short Answer Question

When two compounds namely sodium chloride and calcium chloride are heated directly, one by one on the flame of a burner, they impart different colours to the flame. 

(a) Name the colour imparted by (1) sodium chloride and (2) calcium chloride. 

(b) Are these compounds soluble in organic solvents such as kerosene or petrol? Justify your answer

Question 3: Short Answer Question

What is photosynthesis? Name the organelle and the organs in which photosynthesis takes place. Where does the oxygen liberated come from during this process? What happens to the carbohydrates which are not immediately used by the plant?

Question 4: Long Answer Question

Define water of crystallisation. Write the chemical name and formula of a compound having water of crystallisation in its molecule and appears blue. Write the chemical formula of bleaching powder. Write a balanced chemical equation of the reaction involved in its preparation. List its three uses. 

Question 5: Case-Based Question

The iron pillar in Qutab Minar complex in Delhi was built 1600 years ago. It is still standing intact and shows no signs of rusting even today. This shows that the ancient metallurgists of India in those times had fully developed metallurgical processes as well as the techniques of protection of different metals. The protection of metals was done by several processes like coating of a thin film of another metal, alloying etc. 

(a) Where is iron placed in the reactivity series of metals ? Write the form/forms in which its ores are found in nature.

(b) Differentiate between roasting and calcination. 

(c) Explain any two methods that are employed to prevent rusting/corrosion of metals.

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