Rewrite the following sentences by using the correct symbol > (greater than) or < (less than) in the blanks given:

1. The ionization potential of Potassium is _____ that of Sodium.
2. The
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If (k –3), (2k + 1) and (4k + 3) are three consecutive terms of an A.P,  find the value of k

Complete the following equations:

1. S + conc. HNO₃ →
2. C + conc. H₂SO_4 →
3. Cu + dil. HNO₃ →

A pair of corresponding chromosomes of the same shape and size and derived one from each parent.

Define a kilowatt hour. How is it related to joule?

Explain the following terms and name the crop with which each is associated:

1. Retting
2. Ratooning
3. Ginning

(i) Differentiate between nuclear fusion and nuclear fission.

(ii) State one safety precaution in the disposal of nuclear waste.

Give any two similarities between the ideologies of Nazism and Fascism.

Reaction of Ammonia with Nitric acid.

Correct the following statements by changing the underlined words: The cell sap of root hair is Hypotonic.

What is rain water harvesting?

Copy the diagram given below and complete the path of light ray till it emerges out of the prism. The critical angle of glass is 42°. In your diagram mark the angles wherever necessary.

State any one condition when the Parliament can legislate on subjects in the State List.

The 4^th term of a G.P. is 16 and the 7^th term is 128. Find the first term and common ratio of the series.

Lenticels or stomata (Which one remains open always?)

Barium chloride solution is slowly added to sodium sulphate solution