IIT-JEE Chemistry Sample Paper
CHEMISTRY
151. The volume of 10 moles of an ideal gas is 1 litre at 270C and 1 atm. Pressure. What is the volume (in lit) at 20 moles of same gas at sam temperature and pressure
1) 2 2) 3 3) 1 4) 8
152. Which of the following is used in the extraction of silver?
1) NaCI 2) Na2CO3 3) NaCN 4) Na2 SO4
153. Which one of the following ions exhibits colour in aqueous solution ?
1) Sc3+ 2) Ni2+ 3) Ti4+ 4) Zn2+
154. What is the electrolyte used in the electrolytic method of preparation of fluorine?
1) Naf + CaCI2 2)KHF2 + LiF 3) KF +LiHF2 4) CaCI2+KF
155. Lead impurity is removed from lilver by ?
1) Poling 2) Cupellation 3) Distillation 4) Lavigation
156. Aniline on heating with X in the presence of KOH gives a product with very bad smell. which of the following is X?
1) CH3CI 2) CCI4 3) CHCI4 4) C2H5CI
157. Chloral hydrate is dissolved in NaOH solution and distilled. What are the compounds obtained?
1) CH2CI, NaCI 2) CH3CI, CH3COONa
3) CHCI3, HCOONa,H2O 4) C2H5CI, CH3COONa
158 Bleaching action of chlorine occurs in the presence of
1) O2 2) Moisture 3) Dry air 4) Sun light
159. Which of the following reaction conditions are used for the conversion of ethanol to ethylene?
1) Conc. H2SO4/700C 2) Dil. H2SO4/1400C
3) Dil. H2SO4/100C 4) Conc. H2SO4/100C
160. Which of the following has more acidic character ?
1) H2O 2) H2Te 3) H2S 4) H2Se
161. Which of the following compounds is formed when ethanol reacts with acetic acid in the presence of concentarted H2SO4
1) CH3COOC2H5 2) C2H5OC2H5
3) CH3OCH3 4) CH3CH2CHO
162. In which of the following compounds ozygen exhibits an oxidation state of +2?
1)H2O 2) H2O2 3) OF2 4) H2SO4
163. What is the compound formed when acetaldehyde is reacted with LiAIH4?
1) C2H5ONa 2) CH3COOH
3) C2H5OC2H5 4) CH3COCH3
164. Ethyl chloride reacts with X to form NaCI and Y. One mole of Y reacts with two moles of HI to form water and ethyl iodide. Which of the following is X?
1) C2H5ONa 2) C2H5OC2H5 3) CH3COOH 4) CH3CHO
165. What is the value of gas constant? R. in J mol -1K-1?
1() 82.1 2) 8.314x102 3) 8.314 4) 0.0821
166. What is the value (in ml) of 0.1 M Potassium permanganate solution required to completely oxidize 100 ml of 0.5 M ferrous sulphate solution in acid medium?
1) 20 2) 200 3) 50 4) 100
167. What is the ozidation state sof carbon in carbon diozide?
1) +2 2) +4 3) +6 4) +1
168. Which of the following unclide is unstable?
1) 5B10 2) 4Be10 3) 7N14 4) 8016
169. The PKa of a weak acid is 4.8. What is the ratio of [salt]/[acid]. If a buffer of PH= 5.8 is to be prepared ?
1) 1:1 2) 10:1 3) 2:1 4) 1:10
170. The probability of finding an electron in an orbital is approzimately:
1) 95% 2) 50% 3) 60% 4) 25%
171. Which of the following is a Lewis acid?
1) HCOO- 2) H2SO4 3) SiF4 4) H2S
172. What is the wavelength of H3 line the Balmer series of hydrogen spectrum? (R=Rydberg constant)
1) 36/5R 2) 5R/36 3) 3R/16 4) 16/3R
173. Which of the following is the correct order of ionic radli?
1) NA+ <Mg2+ <AI3+ <Si4+ 2) AI3+ < Si4+ >Na+ >Mg2+
3) Si4+ < AI3+ > Mg2+ >Na+ 4) Na+ >Mg2+ >AI3+ >Si4+
174. Which of the following is used to convert nitrobenzene to hydrazo benzene ?
1) Zn/NH4CI 2) Zn/NaOH 3) Sn/HCI 4) LiAIH4
175. Which of the following has the highest electronegativity?
1) Na 2) CI 3) K 4) B
176. Which of the following has least bond energy?
1) F2 2) H2 3) N2 4) O2
177. Which of the following can be detected bny silver mirror test?
1) CH3 COCH3 2) CH3 COOH 3) C2H6 4) CH3CHO
178. Which of the following is used to convert nitrobenzene to azobenene?
1) LiAIH4 2) Zn/NaoH 3) Zn/NH4CI 4) Sn/HCI
179. Which of the following has the lowest boiling point ?
1) CH4 2) H2O 3) HF 4) C2H5OH
180. Acetic acid reacts with ethanol in the presence of H2SO4 to form X and water, which of the following is X ?
1) CH3CH2COOC2H5 2) CH3COCH3
3) CH3COC2H5 4) CH3COOC2H5
181. Methyl benzene can be prepared by reacting benzene with bromo methane in the presence of :
1) Anhydrous AICI3 2) Br2/CCI4
3) Ni/H2,700C 4) Dil. H2SO4
182. 4 moles of HI is taken in a 1 litre closed vessel and heated till equilibrium is reached. At equillbrium the concentration of H2 is 1 mol. lit -1. What is the equilbrium constant for?
1) 4 2)0.5 3) 2 4) 0.25
183. What is the solution used for the preparation of hydrogen perozide by electrolytic procedure?
1) 0.2 N NaOH 2) 50%H2SO4 3) 20% NaOH 4) 5% NaCI
184. Heat of combustion of carbon is 96 Kcal. When some quantity of carbon is burnt in ozygen, 48 Kcal of heat is liberated. What is the volume (in lit) of ozygen at STP reacted with this carbon?
1) 48 2)22.4 3) 11.2 4) 1
185. What is the rate of the reaction for 2A - B?
1)1/2(-d[A]/dt) 2) -d[A]/dt 3) -d[B]/dt 4) +d[A]/dt
186. Benzene is used in the preparation of :
1) Polythene 2) Gammaxene 3) Chloroform 4) Venigar
187. In a reaction sodium is heated with BeCi2. In this reaction, sodium acts as :
1) Ozidizing agent 2) Reducing agent 3) Hydrolysing agent 4) Precipitating agent
188. What is the molecular formula of plaster of paris?
1) 2CaSO4 1H2O 2) 2CaSO42H2O 3) CaSO42H2O 4) CaSO43H2O
189. Which of the following is used in the manufacture of ethanol?
1) C2H6 2) C2H2 3) CH4 4) C2H4
190. What are the reaction conditions used for the formation of ethylene glycol from ethylene?
1) Bromine water 2) Cold alkaline KMnO4
3) SO4/600C 4) O3/H2O
191. Soild sodium hydrozide is reacted with carbon monozide under pressure. What is the product obtained?
1) CO2 2) CH3ONa 3) HCOONa 4) HCHO
192. What is the C-C bond length (in angstroms ) in Diamond?
1) 1.54 2) 3.35 3) 2.0 4) 5.2
193. In which of the following compounds, the weight percentage of C and H are 80 and 20 respectively?
1) CH4 2) C2H2 3) C2H6 4) C6H6
194. What is the formula of diaspore?
1) AI2O3 2H2O 2) AI2O3 3) AI2O3H2O 4) AIPO4
195. Which of the following is calcium superphosphate?
1) Ca(H2PO4)2 H2O+2(CaSO4 2H2O) 2) Ca3 (PO4)2 + 2CaSO4
3) CaSO4 + CaO 4) Ca (H2PO4)2 H2O + CaSO4
196. What is the catalyst used during the manufacture of nitric acid by Ostwald's method?
1) AI2O3 2) NaH 3) B2H6 4) KCI
197. Which of the following is an electron deficient compoud?
1) NaCI 2) NaH 3) B2H6 4) KCI
198. Elecment ZMA emits one alpha particle followed by two beta particles. Which of the following by two beta particles. Which of the following is daughter element?
1) z - 2M 2) z - 2M 3) z M 4) z + 2M
199. Which of the following aqueous solutions conducts electricity?
1) Urea 2) Glucose 3) Sucrose 4) NaCI
200. 500ml of a solution contains 12.6 grams of ozalic acid (mol.wt. = 126) 10ml of this solution is diluted to 100ml in a flask. What is the molarity (in mol. lit -1) of the resultant solution?
1) 0.2 2) 0.1 3) 0.02 4) 0.01
CHEMISTRY
151) 1, 3 152) 3 153) 2 154) 2 155) 2
156) 3 157) 3 158) 2 159) 4 160) 2
161) 1 162) 3 163) 1 164) 1 165) 3
166) 4 167) 2 168) 2 169) 2 170) 1
171) 3 172) 4 173) 4 174) 2 175) 2
176) 1 177) 4 178) 1 179) 1 180) 4
181) 1 182) 4 183) 2 184) 3 185) 1
186) 2 187) 2 188) 1 189) 4 190) 2
191) 3 192) 1 193) 3 194) 3 195) 1
196) 4 197) 3 198) 3 199) 4 200) 3