2881: Assertion (A) :
Human diet should compulsorily contain Glycrine, Serine and Tyrosin.
Reason (R) :
Essential amino acids cannot be synthesized in the human body.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually 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
2882: Match List I with List II and select the correct answer using the codes given below the Lists :
List I List II
(Characteristic) (Particle)
I. Zero mass (A) Positron
II. Fractional charge (B) Neutrino
III. Fractional spin (C) Quark
IV. Integral spin (D) Phonon
Codes :
(a) I-B, II-C, III-A, IV-D
(b) I-C, II-B, III-D, IV-A
(c) I-B, II-C, III-D, IV-A
(d) I-C, II-B, III-A, IV-D
2883: Consider the following statements :
Hard water is not suitable for
I. drinking.
II. washing cloths with soap.
III. use in boilers.
IV. irrigating crops.
Which of these statements are correct ?
(a) I and III
(b) II and III
(c) I, II and IV
(d) I, II, III and IV
2884: Important oilfields of the Brahmaputra Valley include
(a) Digboi and Kilboi
(b) Lunej and Ankhleshwar
(c) Badarpur and Masimpur
(d) Naharkatia and Moran
2885: Who inscribed the name of Khalifa of Baghdad on his coins?
(a) Alauddin Khilji
(b) Iltutmish
(c) Qutub-ud-din
(d) Balban