Related InterviewSolutions

• Which of the following is not correct for the velocity of electron?A. B. C. D.
• What is the molarity of HCl in a solution prepared by dissolving 5.5 g HCl in 200g ethanol if the density of solution is 0.79g/mL?A. `0.58 M`B. `0.21 M`C. `0.93 M`D. `1.7 M`
• For the reaction, `N_(2)H_(4)(l)+2H_(2)O_(2)(l) rarr N_(2)(g)+4H_(2)O(g)` heats of formation of `N_(2)H_(4), H_(2)O_(2), H_(2)O` are 12, -45 and `-57.8 "kcal mol"^(-1)`. Internal energy change for this reaction is/are at 298 K:A. `-153.2 "kcal mol"^(-1)`B. `-641.142 kJ mol^(-1)`C. `-24.8 kcal mol^(-1)`D. `-309 "kcal mol"^(-1)`
• Rate law for a chemical reactions is : Rate `=k[A]^(1//2)[B]^(1)` Choose the correct options among the following :A. Order of the reaction is 3/2B. Unit of its rate constant is `"litre"^(1//2) mol^(-1//2) sec^(-1)`C. Unit of rate is mol `"litre"^(-1) sec^(-1)`D. Its molecularity is always 3
• Liquid benzene burns in oxygen according to: `2C_(6)H_(6)+15O_(2) rarr 12CO_(2)+6H_(2)O` If density of liquid benzene is 0.88g/cc, what volume of `O_(2)` at STP is needed to complete the combustion of 39 cc of liquid benzene?A. 11.2 litreB. 74 litreC. `0.074 m^(3)`D. `37 dm^(3)`
• Match the List-I with List-II and choose the correct answer from the codes: A. `{:(A,B,C,D),(1,2,3,4):}`B. `{:(A,B,C,D),(2,3,1,4):}`C. `{:(A,B,C,D),(4,3,2,1):}`D. `{:(A,B,C,D),(3,2,4,1):}`
• Match the List-I with List-II: A. `{:((I),(II),(III),(IV),),(3,4,5,1,):}`B. `{:((I),(II),(III),(IV),),(4,5,1,2,):}`C. `{:((I),(II),(III),(IV),),(5,6,2,3,):}`D. `{:((I),(II),(III),(IV),),(6,1,3,4,):}`
• Match the List-I with List-II and select the correct answer from given codes: A. `{:(A,B,C,D),(1,3,2,4):}`B. `{:(A,B,C,D),(1,2,3,4):}`C. `{:(A,B,C,D),(4,3,2,1):}`D. `{:(A,B,C,D),(1,2,4,3):}`
• Match the Colunm-X with Column-Y: A. `{:((I),(II),(III),(IV),),(A,B,C,D,):}`B. `{:((I),(II),(III),(IV),),(A,C,B,D,):}`C. `{:((I),(II),(III),(IV),),(B,A,D,C,):}`D. `{:((I),(II),(III),(IV),),(B,A,C,D,):}`
• Match the Colunm-I with Column-II and select the correct answer using the sequences given below: A. `{:(A,B,C,D),(3,4,2,1):}`B. `{:(A,B,C,D),(4,3,1,2):}`C. `{:(A,B,C,D),(3,4,1,2):}`D. `{:(A,B,C,D),(4,3,2,1):}`