## Concept of Atomic weight

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: !!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^ »