Questions

Select the word with the correct spelling.

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word

Which category of compound is most concentrated energy source?

A solution contains 33 g of common salt in 320 g of water. Calculate the concentration in terms of mass, by mass percentage of the solution.

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/Phrase.
To go through fire and water

Where the mature sperm are produced?

Which of the following phrases (i), (ii), and (iii) given below each sentence should replace the phrase printed in bold letters to make the sentence grammatically correct? Choose the best option among the five given alternatives that reflect the correct use of phrase in the context of the grammatically correct sentence. If the sentence is correct as it is, mark (E) i.e., "No correction required" as the answer.
The vilest of the thing that can be done by a person is to ill-treat dogs and other defenseless animals.
i. vile things that can be done by persons.
ii. vilest things that can be done by a person.
iii. vilest thing that can be done by a person.

Nereis, Pheretima (Earthworm) and Hirudinaria (blood sucking leech) are examples of which Phylum?