Physical Chemistry Answers

When 4.0 g of sulfur are combined with 4.0g of oxygen 8.0 g of surful dioxide so2 are formed what mass of oxygen would be regured to convert 7.0 g of surful into surful trioxide so3?

Universal indicator was added to dilute aqueous solution of NACL this solution was electrolysed
What colour would be observed at the cathode and after a short period of time and why?

What does electrolysed mean

what is the molarity of a 86.0 mL ethanol solution containing 3.17 g of ethanol

600 ml of ozonised oxygen at STP was found to weight one gram. What is the volume of O3 in the ozonoised oxygen ?
(1) 200 ml
(2) 150 ml
(3) 100 ml
(4) 50 ml

Which statement defines specific heat capacity for a given sample?

0.10 g glycine and 0.4 ml water taken in 5 ml conical vial. Warmed slightly to dissolve the glycine. 0.3 rnl acetic anhydride added and stirred for about 5 min. Mixture cooled in ice bath for 10 min. Precipitate collected by suction filtration and washed with a few ml water. Clystais spread over a piece olfiiter papel or watch glass and air dried for i0 min. Mass and melting point of product recorded. Glycine dissolved after about 20 sec when watmed in gl5'cineiwater mixture' White, needle-shaped crystals formed when reaction mixture cooled in ice. 0.14 g. of solid obtained after f,rltration and drying of product. mp of crystals recorded as 205-207 n Solid product possibly still slightly wet.

Which of the following carbonyls will have the strongest C–O bond?
(1) Fe(CO)5
(2) Mn(CO)6+
(3) Cr(CO)6
(4) V(CO)6–

For a reaction A(g) ƒƒImage not present http://www.onlinetestseries.in/data/images/common/papers/partners/32/1178/image093.png B(g) + 2C(g) ; Which relation is correct ?
(1) Image not present http://www.onlinetestseries.in/data/images/common/papers/partners/32/1178/image187.png
(2) Image not present http://www.onlinetestseries.in/data/images/common/papers/partners/32/1178/image189.png
(3) Image not present http://www.onlinetestseries.in/data/images/common/papers/partners/32/1178/image191.png
(4) None