2161: Assertion (A) :
Formic acid is a stronger acid than acetic acid.
Reason (R):
Formic acid is an organic acid.
(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
2162: What is true of Indian National Congress during World War II?
(a) It demanded for its co-operation with the British that a provincial national government may be set up at the centre
(b) It extended full support to the Indian National Army to oust the British from India
(c) It decided to extend full support to the allied nations
(d) It worked for the defeat of the allied nations
2163: Which of the following is wrongly matched?
(a) Abul Fazal : Babumama
(b) Kalhana : Rajtarangini
(c) Mohd. Jayasi : Padmavat
(d) Abdul Hamid Badshahnama
2164: Which of the following statements is true?
(a) Both salinity and density of sea increase with depth
(b) Both salinity and density of sea decrease with depth
(c) Salinity increases but density of sea decreases with depth
(d) Salinity decreases but density of sea increases with depth
2165: Which of the following crops is a tropical monsoon crop?
(a) Rice
(b) Wheat
(c) Ragi
(d) Jowar