General Knowledge Questions

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

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.

By which of the following processes are metals of high reactivity extracted from purified molten ore?

The gases used in different types of welding would include

If we take a small amount of washing soda and add approximately 1 mL of dilute hydrochloric acid to it, what will we observe?

A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence in Passive/Active Voice.

The lecturer praised her.

In the following question, out of the four alternatives, choose the one which best expresses the meaning of the given word.

Mordant