Which of the following is possible for a reaction?
(a)Temperature approaching infinity
(b)`E_(a)`=0
(c)Order =0
(d) Molecularity =0

Which of the following statements are applicable to a balanced chemical equation of an elementary reaction? (a) Order is same as molecularity (b) Order is less than the molecularity (c) Order is greater than the molecularity (d) Molecularity can never be zero .

Which of the following is not zero? (a) 0xx0 (b) 0/3 (c) (7-7)/3 (d) 9+0

A charged particle is moving with constant velocity in a region, then in which of the following possibility of E & B in that region, is this possible. (a) E=0, B=0 (b) E=0, Bne0 (c) Ene0, B=0 (d) Ene0, Bne0

The standard reaction Gibbs energy for a chemical reaction at an absolute temperature T is given by Delta_(r)G^(0)=A-BT where A and B are non-zero constant.Which of the following is true about this reaction? (A) Exothermic if "A>0" and "B 0" (C) Exothermic if "A>0" (D) Endothermic if "B<0"

Which of the following is not zero? (a) 0\ x\ 0 (b) 0/2 (c) ((6-6))/2 (d) 4+0

In which of the following cases,the reaction is spontaneous at all temperature [A] Delta H>0,Delta S>0 ; [B] Delta H 0 ; [C] Delta H>0,Delta S<0

If A , B , C , D are numbers in increasing order and D , B E are numbers in decreasing order , then which one of the following sequences need neither be in a decreasing nor in an increasing order? E, C, D (b) E, B , C (c) D, B, A (d) A, E ,C

An electron in a mercury atoms is in the 3d subshell. Which of the following m_(l) values are possible for it, (a) -3 , (b) -1 , (c ) 0, (d) 1, (e) 2?