Practice questions
88551 published questions with worked solutions.
- Match the LIST-I with LIST-II List-I (Reagents): (A) NH_2-NH_2, KOH (B) Ag(NH_3)_2OH (C) Aq. CuSO_4, Sodium Potassium tartarate,...
- Given below are two statements: Statement I: The halogen that makes longest bond with hydrogen in HX, has the smallest covalent...
- Given below are two statements: Statement I: Sucrose is dextrorotatory. However sucrose upon hydrolysis gives a solution having...
- 'A' is a neutral organic compound (M. F: C_8H_9ON). On treatment with aqueous Br_2/HO^-, 'A' forms a compound 'B' which is...
- Two p-block elements X and Y form fluorides of the type EF_3. The fluoride compound XF_3 is a Lewis acid and YF_3 is a Lewis...
- As compared with chlorocyclohexane, which of the following statements correctly apply to chlorobenzene? A. The magnitude of...
- Given below are two statements: Statement I: The Henry's law constant K_H is constant with respect to variations in solution's...
- Consider the following electrochemical cell at 298 K Pt|HSnO_2^-(aq)|Sn(OH)_6^ 2- (aq)|Bi_2O_3(s)|Bi(s). If the reaction quotient...
- The temperature at which the rate constants of the given below two gaseous reactions become equal is _____ K. (Nearest integer)....
- Dissociation of a gas A_2 takes place according to the following chemical reaction. At equilibrium, the total pressure is 1 bar...
- Let n be the number obtained on rolling a fair die. If the probability that the system x - ny + z = 6 x + (n-2)y + (n+1)z = 8...
- If the mean deviation about the median of the numbers k,2k,3k, ,1000k is 500, then k^2 is equal to :
- Let S = z C : 4z^2 + z = 0 . Then _ z S |z|^2 is equal to :
- If _ x 0 e^ (a-1)x + 2 bx + (c-2)e^ -x x x - _e(1+x) = 2, then a^2+b^2+c^2 is equal to :
- If y=y(x) satisfies the differential equation 16 ( x+9 x ) (4+ 9+ x ) y , dy = (1+2 y)dx, x>0 and y(256) = 2 , y(49) = , then 2...
- Among the statements (S1) : If A(5,-1) and B(-2,3) are two vertices of a triangle, whose orthocentre is (0,0), then its third...
- Let a = 2 i - j + k and b = j +2 k , Z be two vectors, Let c = a b and d be a vector of magnitude 2 in yz-plane. If | c | = 53 ,...
- If X= bmatrix X bmatrix is a solution of the system of equations AX=B, where adj A = bmatrix 4 & 2 & 2 -5 & 0 & 5 1 & -2 & 3...
- Let L be the line x+1 2 = y+1 3 = z+3 6 and let S be the set of all points (a,b,c) on L, whose distance from the line x+1 2 = y+1...
- Let P(10,2 15 ) be a point on the hyperbola x^2 a^2 - y^2 b^2 =1, whose foci are S and S'. If the length of its latus rectum is...