ChemGGuru. Questions & Answer CHEMISTRY
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1 CAREER PIT JEE Mai lie Paper JEE Mai lie Exam 09 [Memory Based Paper] Q. Which of the followig is amphoteric i ature As. [] ` Questios & Aswer th Jauary 09 Shift - I CHEMISTRY Mg(H ( Be(H Ca(H Sr(H Q. Which of the followig is preset i RA H ChemGGuru H ( H H H H H Q.3 What is the correct order of atomic radius C, Cs, Al, S Cs > C > S > Al ( Al > S > C > Cs Cs > Al > S > C S > C > Cs > Al Q.4 What is ah Salie hydride ( Metal hydride Molecular hydride Electro rich hydride As. [] Q.5 Which of the followig will ot get hydrolysed CCl 4 ( SiCl 4 PbCl 4 SCl 4
2 JEE Mai lie Paper Q.6 PA produce Acid rai ( Wastage Photochemical smog Classical smog Q.7 Which of the followig is solid Sol Butter ( Paits Gem stoe Cake Q.8 Which of the followig is/are ot aromatic (a (b (c (d As. [] a, c ( b, d oly oly b b, c, d Q.9 Which of the followig metal do ot show variable xidatio state - Sc ( Cu i Fe H Q.0 excess S 3 H H H ( S 3 H H H S 3 H
3 JEE Mai lie Paper Q. Colum I Colum II (i Z (a Siderite (ii Fe (b Calamie (iii Cu (c Malachite (iv Al (d Kaoli (i d, (ii a, (iii b, (iv c ( (i d, (ii b, (iii c, (iv a (i b, (ii a, (iii d, (iv c (i b, (ii a, (iii c, (iv d As. [4] Q. Two substace havig same mass ad of same metal at temp T ad T they attai thermal equilibrium at costat pressure, the chage i etropy observed is - (T T (T T S Cp ( S Cp 4T T T T (T T (T T S Cp S Cp T T T T C Q.3 (i KM 4 /KH (ii Dil. H S 4 CH C ( HC CH C CH HC 3
4 JEE Mai lie Paper Q.4 HC H (i a + HCl (ii Polymerisatio C (CH 4 H ( C (CH 4 H C (CH 4 C (CH H Q.5 Colum I Colum II (i floxaci (P Atibiotic drug (ii orethidroe (Q Hyper tesio remover drug (iii Phealzie (R Ati fertility drug (S Aalgesic drug i P, ii R, iii Q ( i R, ii Q, iii P i S, ii Q, iii R i S, ii P, iii R Q.6 H ca be used as better fuel because - (a It produce less pollutio tha petrol (b A cylider of compressed H gas weights about, 30 time as much as tak of petrol (c Hydroge is stored i tak of ai 5 alloy (d It's calorific value is 50 KJ/mole ad petrol has 0 KJ/mole b, c ( b, c, d a, b, c b, d Q.7 Z(s / Z + // M + / M E o Z / Z 0.76V o E cell (i Ag + + e Ag (s V (ii Au e Au (s (iii Fe + + e Fe (s (iv Fe 3+ + e Fe V 0.44 V V Which will have highest cell potetial per uit e - Ag + /Ag ( Au +3 /Au Fe + /Fe Fe +3 /Fe + 4
5 JEE Mai lie Paper Q.8 Match the followig : Colum-I (a water + sugar (b water + toluee (c water + ailie Colum-II (i Sublimatio (ii Differetial extractio (iii Recrystallisatio (iv Steam Distillatio a (iii, b (ii, c (iv ( a (ii, b (iii, c (i a (i, b (iii, c (iv a (ii, b (i, c (iv Q.9 A metal crystallises i FCC hayig edge legth 00 pm ad desity is kg/m 3 tha the molar mass of the metal is kg/mol ( kg/mol kg/mol kg/mol Q.0 A Duma process is doe o A compoud X ad if 6 mole C is formed, mole is formed ad 4 mole of H is formed what is X. C H 6 ( C H 8 C 6 H 8 C 6 H 8 Q. X Y G 0 = T Which of the followig is correct - At 35 K, X is formed ( AT 80 K, Y is formed AT 350 K, X is formed At 300 K, Y is formed Q. For Hydroge atom whe electro trasit from high eergy state to low eergy state, a photo of wavelegth 900 m is obtai, which of the followig is correct - e jump from ifiite to third eergy state (Pasche series. ( e jump from 5 th to fourth eergy state (acket series e jump from ifiite to groud state [Lyma series] e jump from ifiite to d eergy state [Balmer series] Q.3 The equilibrium costat durig Habers Process is K p the fid out the partial pressure of H 3 accordig to the reactio, if total pressure at equilibrium is P. H 3 + 3H Assume the partial pressure of H 3 very less i compariso to the total pressure - (K 3/ / p P / ( p 3/ P K / (K 3/ P / p P (K / p 5
6 JEE Mai lie Paper Q.4 Cl P is - H (i H (ii Alc. KH P ( H Q.5 (i Mg (a Vitami B (ii Z (b Chlorophyll (iii Rh (c Carboxy ahydrase (iv Co (d Wilkiso catalyst i a; ii b; iii c; iv d ( i b; ii a; iii c; iv d i b; ii c; iii d; iv a i d; ii b; iii c; iv a Q.6 I a graph betwee k vs, gradiet is y the Ea will be - RT y/k ( y + y yk Q.7 A solutio havig freezig poit 0.5ºC is diluted after dilutio its freezig poit become 0.ºC, if iitially cups of water is preset, the after dilutio, how much H is added - 3 cups of H ( cups of H cups of H 4 cups of H Q.8 The cold water ca cotai maximum dissolved oxyge - 0 ppm ( 6 ppm 5 ppm 0 ppm Q.9 Et C Product is - (i H /i (ii DiBAL H Product As. [4] E H ( H H H H Q.30 I a mixture of 0. g of ahc 3 & oxalic acid, 0.5 ml C is released at (P = bar, T = 98.5 K. At this temperature ad pressure the molar volume of C is 5 lit. The fid out the % of sodium bicarboate - 84 (
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