816: Match List I (Oxdiation number) with List II (The element) and select the correct answer using the codes given below this lists:
List I List II
(Oxidation number) (The element)
A. 2 1. Oxidation number of Mn in MnO2
B. 3 2. Oxidation number of S in H2S2O7
C. 4 3. Oxidation number of Ca in CaO2
D. 6 4. Oxidation number of Al in NaAIH4
Codes:
A B C D
(a) 3 4 1 2
(b) 4 3 1 2
(c) 3 4 2 1
(d) 4 3 2 1
817: Match List I with List II and select the correct answer by using the codes given below the lists :
List I---------------List II
(Author)-----------(Text)
I. Varahamihira-----(A) Prabandha Chintamani
II. Visakhadatta----(B) Mrchchhakatikam
III. Sudraka--------(C) Brhat-Samhita
IV. Bilhana---------(D) Devi Chandraguptam
-------------------(E) Vikramankadevacharita
Codes:
(a) I-C, II-D, III-E, IV-B
(b) I-C, II-D, III-B, IV-E
(c) I-E, II-C, III-D, IV-A
(d) I-A, II-C, III-E, IV-B
818: The heart of human embryo starts beating
(a) in the first week of its development
(b) in the third week of its development
(c) in the fourth week of its development
(d) in the sixth week of its development
819: Match List I with List II and select the correct answer using the codes given below the Lists :
List I List II
(Substance) (Physiological role)
I. Ptyalin (A) Converts angioten-sinogen in blood into angiotensin
II. Pepsin (B) Digests starch
III. Renin (C) Digests proteins
IV. Oxytocin (D) Hydrolyses fats
(E) Induces contraction of smooth muscles
Codes:
(a) I-B, II-C, III-A, IV-E
(b) I-C, II-D, III-B, IV-E
(c) I-B, II-C, IH-E, IV-A
(d) I-C, II-A, III-B, IV-D
820: A and B can do a piece of work in 4 days. If A can do it alone in 12 days, how much time B will take to finish it alone?
(a) 4 days
(b) 6 days
(c) 8 days
(d) 10 days