Question: P and Q are two elements which forms P_2Q_3 and PQ_2. If 0.15 mole of P_2Q_3 weights 15.9g! »

Question Let A = R - {3} and B = R - {1} Let f: A to B be defined by f(x) = (x-2)/(x-3) a)" "f is »

Question Let lambda_alpha, lambda_beta and lambda_alpha^' denote the wavelengths of the X-rays of the K_alpha, K_beta and L_alpha! »

Question Line joining the points (2,-3,1) and (3,-4,-5) intersect the coordinate axes planes at ? a)" "(0,-1,13) b)" "(9,-9,0) »

Question n identical cells, each of emf E and internal resistance r, are joined in series to form a closed circuit. The potential difference across any »

Question In the following electrochemical cell Zn|Zn^(2+) || H^(+)|Pt(H_2) E_"cell"^0 = E_"cell". This will be when a) [Zn^(2+)]= [H^ »

Question: If tan(alpha/2)=m , then (1-2sin^2(alpha/2))/(1-sinalpha)=? (a) (1-m)/(2m) (b)  (2m)/(1+m) (c) (1-m)/(1+m) (d) (1+m) »

Question: A gas ‘X’ when dissolved in water, heat is evolved. Then solubility of ‘X’ will increase at: a) Low pressure, high temperature b) Low pressure, »

Question: A force acting on a body depends on its displacement S as F prop S^(-2/3). The power delivered by F will depend on »

Question Which of the following species has the shortest bond length? a) O_2^(-) b) O_2^(2-) c) O_2^(2+) d) O_2^ »