The intermolecular potential energy for the molecules A, B, C and D given below suggests that: 1) A–A has the largest bond enthalpy. 2) D... View Article
Most suitable salt which can be used for efficient clotting of blood will be: a. Mg(HCO3)2 b. FeSO4 c. NaHCO3 d. FeCl3 Answer: (d) Blood is a... View Article
Match List-I and List-II. a. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii) b. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii) c. (a)-(iii), (b)-(i), (c)-(iv),... View Article
The correct shape and I-I-I bond angles respectively in I-3 ion are: a. Trigonal planar; 120o b. Distorted trigonal planar; 135o and 90o c.... View Article
a. b. c. d. Answer: The correct sequence of reagents used for converting nitrobenzene into m- dibromobenzene is found in option (d).... View Article
Which of the following reagent is suitable for the preparation of the product in the following reaction? a. Red P + Cl2 b. NH2-NH2/ C2H5O-Na+... View Article
The calculated magnetic moments (spin only value) for species [FeCl4]2-, [Co(C2O4)3]3- and MnO2-4 respectively are: a. 5.92, 4.90 and 0 BM b.... View Article
The incorrect statement among the following is: a. VOSO4 is a reducing agent b. Red color of ruby is due to the presence of CO3+ c. Cr2O3 is an... View Article
Given below are two statements: Statement I: The value of the parameter ''Biochemical Oxygen Demand (BOD)'' is important for survival of aquatic... View Article
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Hydrogen is the most... View Article
Match List-I with List-II List- I List-II (Metal) (Ores) (a) Aluminum (i) Siderite (b) Iron (ii) Calamine (c) Copper (iii) Kaolinite (d) Zinc... View Article
The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is: a. (iv) < (i) <... View Article
a. 86 b. 88 c. 84 d. 90 Answer: (b) P(a, 6, 9), Q (20, b, -a-9) Mid point of PQ=((a+20)/2, (b+6)/2, -a/2) lie on the line. => (a + 20 -... View Article
