Questions

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.

Grotesque

Which one of the following is not a biosphere reserve of India?

"Pandvani" is a major folk dance form of which states?

How many atoms are present in a (NH₄)2SO4 molecule?

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

The antigen-antibody immunological reaction is used to be regarded as typical of immunological responses. Antibodies are proteins synthesized by specialized cells called plasma cells, which are formed by lymphocytes (cells from the lymph system) when an antigen, a substance foreign to an organism's body, comes in contact with lymphocytes. Two important manifestations of antigen-antibody immunity are lysis, the rapid physical rupture of antigenic cells and the liberation of their contents into the surrounding medium, and phagocytosis, a process in which antigenic particles are engulfed by and very often digested by macrophages and polymorphs. The process of lysis is executed by a complex and unstable blood constituent known as complement, which will not work unless it is activated by a specific antibody; the process of phagocytosis is greatly facilitated when the particles to be engulfed are coated by a specific antibody directed against them.

Phagocytosis is a process in which antigenic particles are _____ by and very often digested by macrophages and polymorphs.

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

Myopic

The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: This would bring a sense of closure to an issue that has seen about two decades of wrangling.
Q: By clearing the path for 49 percent foreign investment in Air India (AI), the Centre has finally decided to push ahead on its privatisation.
R: While the parliamentary standing committee on AI privatisation is yet to express its views, a sort of political consensus appears to be close at hand.
S: There cannot be a more opportune time to push ahead with disinvestment; this, ironically, is despite the fact that the airline has improved its operational  performance.

Chords PQ and RS of a circle extended externally intersect at point T. Length of the segment PT, if lengths of QT, RT and ST are 9 cm, 18 cm and 6 cm respectively, is