Saturday, 2 May 2015

Old Papers for Chemistry


CLA 
r. HE MIS IRV" 
_flot q9 
TIME 20 MINUTES MARKS: 17 
OBJECTIVE  • NOTE:All the questions are to be attempted. Write your Roll No before attempting the paper in space him..., for this purpose. Answers arc to be given on this very sheet. (Cutting over-writing, using lead pencil , rubber or ink-remover will result into loss of marks) 1. Etch questioa has four possible answers. Tick mark ( / I the correct answer
 1- One of the substance is used to absorb CO2 gas.in combustion analysis which is that substance (a) 50 Or K01-1 (b) Al203 (c) Mg (C104)2 (1)0102
 2- Number of molecules in 01111 dm3 of H2O1is close.to (e) 6.022 x 1023 (b) Ill it 6.022 x 2 (c) 55.5 x 6.022 x 1021 (d) 1 g x 102' 24
 3- In chromatography the al/gloomy phase (a) is a solid (b) is • liquid (c) may be liquid or gas (d) may be solid or liquid a.
 Which gas will difTuso more rapidly among the follow tog 7 (a)34; (6) /42 (c) CO INIh point of 1120 at in-crest would dr (a) 98 °C (6)100°C 01 *C 69 °
 o- Allotropy is the prOiw-rty (a) Coinpound (b)Elem -Art 7- Numta of neutrons present in w in (a)20 (b) 19 (c) 39 . (d) IS
 o- Value of the Rolbers'a constant is 
p1.706f ‘,1?',.1.' )(6) 1,91B. ((op pi/8 
11 at (Ohl .6 x 107.41.1, 014Vnigibetrofaigspalthwlit etlire (CH_ .colt  at 1"ive (b) 'Mee (c) Two (d) Four
 10- Which of the following molecule has • co-ordinate covalent bond (a) NH3 (h) AICI3 (c) NCI (d)1414C1 
11- Which one of the following process is an exothemic (a) Sublimation (b) Respiration (c) Fusion (d) Evaporation 
12- Ell of rain water is (a) 5.0 (b) 6.0 (e) 6.2 (d) 7.0
 13. Equilibrium constant for gaseous equilibrium is represented by (a) Ka (b) Kc (c) Kx (d) Kp
 14- Which one of the following is an ideal solution (a) C21150H and H2O (b) Cali, and CC4 (c) C11C13 and (CH3)2C0 (d)1120 and HCI
 IS- Oxidation state of carbon in glucose (CaH)206) is (a) Zero (b) One (c) Two (d) Four 
16- The electrolyte used in fuel cell is (a) NaNO3 (b) K011 (c) Aqueous NaCI (d) Aquoaus 81250e • 17- The equation K AeEsilt7 is called (a) Rate Law (b) Rate equation (c) Antencous equation (d) gcnend gas equation 
17 

No comments:

Post a Comment