| 1 | In the manufacture of nitric acid by ostwald,s process, the catalyst used are |
| finely divided iron |
Pt-Rn gauze |
vanadium pantoxide |
molybdenum | | 2 | The reaction 2N2O5 <--> 4NO2 + O2 follows Ioder kinetics. Hence the molecularity of reaction is |
| unimoleqular. |
pseudo unimoleqular |
bimoleqular. |
none of these. | | 3 | Potassium crystallizes in a body centered lattice Hence the coordination number of potassium in potassium metal is |
| Zero |
8 |
6 |
4 | | 4 | Which one of the following does not conduct electricity |
| fused NaCl. |
solid NaCl |
solid Chloride Solution |
copper. | | 5 | A metal rod is dipped in a solution of its ions. Its electrode potential is independent of |
| temperature of solutions. |
concentration of solution |
area of metal exposed |
nature of metal | | 6 | Phosphorous occurs as |
| phosphide. |
phosphate. |
oxides |
element (free state). | | 7 | NaCN is used in the extraction of |
| iron |
copper |
magnesium |
gold. | | 8 | When Reactivity of Halogen atom is minimum in |
| propyl oxide |
propyl chloride |
isopropyl chloride |
isopropyl bromide | | 9 | Given that Zn + ½ O2 --> ZnO + 35.28 kj HgO --> Hg + ½ O2 - 9.11 kj so the heat of reaction Zn + HgO --> ZnO + Hg is |
| 26.17 kj |
44.39 kj |
-44.39 kj |
2.617 kj. | | 10 | The most convinient method to remove a phenolic group from a compound is to |
| reduce it using Tin and HCl. |
heat it strongly with Copper |
reduce it strongly with SnCl2. |
disfill it with Zn dust | | 11 | The number of ions formed when cuprammonium sulphate dissolves in water is |
| one |
two |
four |
zero | | 12 | Among the following : NaOH, Ca(OH)2, KOH and Zn(OH)2 The weakest base is |
| NaOH |
Ca(OH)2 |
KOH |
Zn(OH)2 | | 13 | In Pyrophosphoric acid the number of hydroxyl group present are |
| 4 |
3 |
5 |
7 | | 14 | Among the following the compound that decolourises alkaline kMnO4 is |
| C8H8 |
C2H4 |
CH4 |
CCl4 | | 15 | Identify the element which can have highest oxidation number |
| C |
N |
O |
Cl | | 16 | Metal halide which is insoluble in water |
| AgF |
AgI |
CaCl2 |
kBr | | 17 | Among the following, the compounds nitrobenzene, benzene, aniline and phenol the strongest basic behaviour in acid medium exhibited by |
| phenol |
aniline |
nitrobenzyne |
benzene | | 18 | Phenol is most easily soluble in |
| sodium carbonate solution |
sodium hydroxide solution |
dilute HCl |
both sodium hydroxide and dilute HCl | | 19 | The oils tend to be liquids at room temperature, if they contain more of |
| glycerol |
unsaturated fatty acids |
saturated fatty acids |
non-fatty impurities | | 20 | The conversion of A-->B follows a third order kinetics.Doubling the one of A will increse the rate of formation of B by a factor of |
| 6 |
1/6 |
8 |
1/8 | | 21 | Which one of the following chars when warmed with concentrated sulphuric acid |
| hydrocarbon |
carbohydrate |
protein |
fat | | 22 | Which one pof the following bimolecules contain a non-transition metal ion |
| vitamin B12 |
haemoglobin |
chlorophyll |
insulin | | 23 | Volume of 0.6M NaoH is required to netralise 30cm3 of 0.4M HCl is |
| 4.5 cm3 |
30 cm3 |
20 cm3 |
50 cm3 | | 24 | Among the halogens as you go from F to I, the electron affinity |
| increases |
decreases |
fluctuates |
remains same | | 25 | Turuball's blue is |
| Fe4 [Fe (CN)6 ]3 |
Fe4 [Fe (CN)6 ] |
Fe2 [Fe (CN)6 ]3 |
Fe3 [Fe (CN)6 ]2 | | 26 | Hydrolysis of benzonitrile by dilute HCl yields |
| aniline |
benzoldelyde |
benzoic acid |
benzaunide | | 27 | Acetone is soluable in water due to |
| methyl group |
neutral nature |
dissociation in water |
hydrogen bonding | | 28 | The soluability product of silver chloride is 1.8x10-10 at 298 k. The soluability of AgCl in 0.01m HCl solution in more cm-3 is |
| 3.6x10-8 |
2.4x10-9 |
1.8x10-8 |
0.9x10-9 | | 29 | The percentage s-character of the hybrid orbitals in methane, ethene and ethyne respectively |
| 10, 20, 40 |
50, 75, 100 |
25, 50, 75 |
25, 33, 50 | | 30 | An aqueous solution of colourless metal sulphate M gives a white precipitate with NH4OH. This was soluble in excess of NH4OH. On passing H2S through this solution a white precipitate is formed. The metal in matal salt is |
| alluminium |
calcium |
barium |
zinc | | 31 | There is a very little difference in acid strength in the series H3PO4, H3PO3 and H3PO2 because |
| phosphorous is not a highly electronegative element |
hydrogens in these acids are not all bonded to phosphorous |
phosphorous in these acids exists in different oxidation states |
phosphorous oxides are less basic | | 32 | Formaldehyde and acetaldehyde are manufactured by dehydrogenation of methanol and ethanol respectively. The catalyst used in this reaction is |
| concentrate H2SO4 |
Copper |
nickel |
chromium oxide | | 33 | Copper is below iron and above silver in the electrochemical series. So, we can expect that |
| copper displaces silver from silver nitrate solution |
copper displaces iron from ferrous sulphate solution |
silver displaces copper from copper sulphate solution |
silver displaces iron from ferrous sulphate solution | | 34 | Anisole can be prepared by the action of methyl iodide on sodium phenate. The reaction is known as |
| Reimer-Tiavam,s reaction |
Williamson's reaction |
Etard's reaction |
Schotlen-Baumani's reaction | | 35 | Dry ammonia was passed over heated copper oxide. The resulting gases were passed through anhydrous calcium chloride and then collected over mercury. If the gain in weight of calcium chloride is 0.06gm, the volume of gas collected at STP is about |
| 20m |
125ml |
30ml |
35ml | | 36 | Glycerol was distilled with qxalic acid and products were led into fehling's solution and warmed. Cuprous oxide was precipitated it is due to |
| CO |
HCHO |
CH3CHO |
HCOOH | | 37 | A mixture of two organic chlorine compounds was treated with sodium metal in ether solution. Isabutane was obtained as a product. The two chlorine compounds are |
| methyl chloride and propyl chloride |
methyl chloride and ethyl chloride |
isopropyl chloride and methyl chloride |
isopropyl chloride and ethyl chloride | | 38 | A disaceharides made up of two units of same monosaceharide is |
| mattose |
sucrose |
lactose |
raffinose | | 39 | Drying oils are so called because they are |
| volatile and so evaporate rapidly |
hygrosopic and so absorb moisture from the surroundings |
easily hydrolised by atmospheric moisture to give solid products |
highly unsaturated and so undergo atmosphere oxidation to yield resinous residue | | 40 | The -OH group of methyl alchohol can't be replaced by chlorine by by the action of |
| hydrogen chloride |
phosphorous tri chloride |
phosphorous penta chloride |
chlorine | | 41 | Toluene can be oxidized to benzaldehyde using |
| Willamson's reaction |
Hoffman's reaction |
Etard's reaction |
Fittig's reaction | | 42 | Heating a mixture of calcium formate and calcium acetate produces |
| acetone |
ethyl alchohol |
acetaldehyde |
ethane | | 43 | Which of the following nitrogeneous fertilizers contain more nitrogen |
| urea |
(NH4)2 SO4 |
(NH4)3 PO4 |
CAN | | 44 | Inert gases except helium belong to |
| S-block |
P-block |
D-block |
F-block | | 45 | Iodine difficiency in diet is known to cause |
| beri-beri |
goiter |
rickets |
night blindness | | 46 | The temperature at which RMS velocity of methane be equal to that sulpur dioxide at 300k |
| 150k |
600k |
75k |
1200k | | 47 | Elements of which group from anions most rapidly |
| oxygen family |
nitrogen group |
halogens |
alkali metals | | 48 | A metal oxide contains 40% by mass of oxygen. Its equivalent weight is |
| 40 |
48 |
12 |
20 | | 49 | 9 gms of a trivalent metal contains with 35.5 g of chlorine. The atomic weight of metal is |
| 3 |
9 |
18 |
12 | | 50 | The hydrogen atoms in acetylene are |
| basic |
neutral |
acidic |
pasive | | 51 | The IUPAC name of compound having the formula
 |
| 3,3,3 Trimethyl -1-propene |
1,1,1 - Trimethyl-2-2propene |
3,3 dimethyle-1-1butene |
1-isoprophyle ethylene | | 52 | Equillibrium constant of 2HI<--->H2+I2 at 25° C is 100. The equilibrium constant of 1/2H2+ 1/2I 2<--->HI at the same temperature is |
| 0.01 |
0.1 |
10,000 |
102 | | 53 | A carboxylic acid is reacted with slacked line. The product formed on dry distillation gave a compound with formula C6H5COC6H5 . The acid A should be |
| pthalic acid |
salicylic acid |
benzoic acid |
phenyl acetic acid | | 54 | Name the end product in the series
CH3COOH  A  B C |
| CH4 |
CH3OH |
CH3CN |
CH3CONH2 | | 55 | Our body converts all digestible carbohydrates into glucose which then undergoes oxidation and supplies energy to us. To store surplus glucose |
| the liver converts it into glycogen |
the stomach converts it into starch |
the pancreas converts it into glycogen |
the liver converts it into starch | | 56 | Chlorobenzene is |
| more reactive than ethyl bromide |
nearly as reactive as methyl chloride |
less reactive than benzyl chloride |
more reactive than isoprophyle chloride | | 57 | A 0.01M ammonia solution is 5% ionized. The concentration of
OH---- ions is |
| 0.005M |
0.0001M |
0.0005M |
0.05M | | 58 | The relative strengths of hydrosalic acids are in the order : |
| HCl > HBr > HI |
HI > HBr > HCl |
HBr > HCl > HI |
HI > HCl > HBr | | 59 | 2g of aluminium is treated separately with excess of dilute H2SO4 and excess of NaOH. The ratio of volumes of hydrogen evolved is : |
| 1:1 |
2:3 |
1:2 |
2:1 | | 60 | In the ostwalld's process, ammonia is oxidized using gaseous oxygen.The final product of oxidation is nitric acid. The first product of oxidation of ammonia is |
| nitrous acid |
nitrogen di oxide |
nitric oxide |
nitrogen pentoxide |
