2241: Diamond and Emerald contain:
(a) Carbon and silicon
(b) Carbon and zinc
(c) Silicon, aluminium and beryllium
(d) Carbon and calcium
2242: AIDS is:
(1) Caused by virus
(2) Carried by body fluid, blood and serum
(3) Found mostly in males
(4) Found mostly in homosexuals
(a) 1 and 4 are correct
(b) 1,2 and 4 are correct
(c) 2 and 3 are correct
(d) 1, 2, 3 and 4 are correct
2243: By which Amendment to the Constitution, the Fundamental Duties of the citizens were specified?
(a) 38th
(b) 40th
(c) 42nd
(d) 44th
2244: Who among the following was a proponent of Fabianism as a movement?
(a) Annie Besant
(b) A. O. Hume
(c) R. Palme Dutt
(d) Michael Madhusudan Dutt
2245: Consider the following statements:
1. A widely used musical scale called diatonic scale has seven frequencies.
2. The frequency of the note Sa- (lk) is 256 Hz and that of Ni- (uh) is 512 Hz.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2