226: Which among the following National Highway routes is the longest?
(a) Agra-Mumbai
(b) Chennai-Thane
(c) Kolkata-Hajira
(d) Pune-Machilipatnam
227: During the freedom struggle, Aruna Asaf Ali was a major woman organizer of underground activity in
(a) Non-Cooperation Movement
(b) Civil Disobedience Movement
(c) Swadeshi Movement
(d) Quit India Movement
228: The major ingredient of leather is:
(a) Collagen
(b) Polymer
(c) Carbohydrate
(d) Nucleic acid
229: Assertion (A)
Bhanu Athaiya became the first Indian to win Oscar award
Reason (R)
She received this award for her excellent portrayal of Kasturba in the film 'Gandhi'
(a) if A and R both are correct and R is the correct explanation of A
(b) if A and R both are correct but R is not the correct explanation of A
(c) if A is incorrect but R is correct
(d) if A is correct but R is incorrect
230: Aluminium surfaces are often anodized. This means the deposition of a layer of
(a) chromium oxide
(b) aluminium oxide
(c) nickel oxide
(d) zinc oxide