2711: Consider the following pairs: Region often Country in news
1. Chechnya : Russian Federation
2. Darfur : Mali
3. Swat Valley : Iraq
Which of the above pairs is / are correctly matched ?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
2712: When ants bite, they inject
(a) glacial acetic acid
(b) methanol
(c) formic acid
(d) stearic acid
2713: The economic and monetary union of 15 European Countries is proposed to be made by 1999. But the currencies of two countries, Franc, have already the same value and circulate freely in both the countries. The countries are
(a) France and Switzerland
(b) Switzerland and Luxembourg
(c) Luxembourg and Belgium
(d) France and Belgium
2714: There are two identical red, two identical black and two identical white balls. In how many different ways can the balls be placed in the cells (each cell to contain one ball) shown below such that balls of the same colour do not occupy any two consecutive cells?
(a) 15
(b) 18
(c) 24
(d) 30
2715: Very small-time intervals are accurately measured by the:
(a) Pulsars
(b) White dwarfs
(c) Atomic clocks
(d) Quartz clocks