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Class 10 Science Last minute quiz CBSE

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16 Feb
Quiz

Quiz

1. Pb + CuCl₂ → PbCl₂ + Cu. The above reaction is an example of:

2. Identify the non-metal which is lustrous.

3. The complete oxidation of ethanol gives:

4. Which of the following is not a chemical reaction?

5. Identify the totally impossible outcome of Mendel’s Experiment (cross-breeding purebred tall and short pea plants):

6. Who have a perfect pair of sex chromosomes?

7. Every food chain in the ecosystem begins with………. which is the original source of food.

8. Which property of metals is used for making bells and strings of musical instruments like Sitar and Violin?

9. The number of isomers of pentane is:

10. Name the substances that build up in the muscles during vigorous physical exercise and may cause cramps.

11. The longest fiber on the cell body of a neuron is called:

12. Vegetative propagation refers to the formation of new plants from:

13. A section of DNA providing information for one protein is called:

14. What is the order of the waste management hierarchy, from most to least favoured?

15. Two heater wires of equal length are first connected in series and then in parallel with a battery. The ratio of heat produced in the two cases is:

16. What amount of energy will be received by omnivorous if herbivorous is receiving 200KJ from the producer?

17. Assertion (A): Zinc carbonate is heated strongly in the presence of air to form zinc oxide and carbon dioxide.
Reason (R): Calcination is the process in which a carbonate ore is heated strongly in the absence of air to convert it into metal oxide.

18. Assertion (A): Pyruvate is a six-carbon molecule.
Reason (R): It is prepared in the cytoplasm as the first step to cellular respiration.

19. Assertion: Accumulation of variation in a species increases the chances of its survival in a changing environment.
Reason: Accumulation of heat resistance in some bacteria ensures their survival even when the temperature in the environment rises too much.

20. Assertion: The crown fires are most destructive as they burn the tree top.
Reason: Due to crown fire the temperature of that area may rise up to 700 degrees Celsius.

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