16: The most reactive among the halogens is
(a) fluorine
(b) chlorine
(c) bromine
(d) iodine
17: What is the broad area in which the Nobel Prize winners for the year 2006 in Physiology or Medicine, worked to get the Prize?
(A) Adult stem cell research
(B) Immunology and disease resistance
(C) Flow of genetic information
(D) Prevention of weakening due to ageing
18: Production of which one of the following is a function of the liver?
(a) Lipase
(b) Mucus
(c) Hydrochloric acid
(d) Urea
19: Consider the map given below :
The dotted (broken) line in the map is the
(a) Durand line
(b) MacMahon line
(c) line of demarcation between India and Pakistan suggested by the Boundary Commission (1947)
(d) route followed by the Young husband Expedition
20: Assertion (A) :
The British sovereignty continued to exist in free India.
Reason (R) :
The British sovereign appointed the last Governor-General of free India.
In the context of the above two statements, which one of the following is correct ?
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true