ECAT Chemistry Online Test With Answers

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ECAT Chemistry Online Test

Sr. # Questions Answers Choice
1 The fractions obtained from fractional distillation of petroleum are placed in increasing order of their boiling points. Which order is correct Natural gas, petroleum ether, gasoline kerosene Petroleum ether, kerosene, natural gas, petroleum ether Gasoline, kerosene, natural gas, petroleum ether Kerosene, gasoline, petroleum ether, natural gas
2 The major portion of natural gas is Ethane Propane Butane Methane
3 The self linking property of carbon is called as Linking polymerization Addition Catenation Elimination
4 The destructive distillation of coal gives three products. What is not the product of destructive distillation of coal Coal gas Carbon dioxide Coal tar Coke
5 Which is not a fossil fuel Petroleum Coal Natural gas None of them
6 The active part in a molecule is called Hetroatom Functional group Chemical bond Ion
7 Who rejected the vital force theory Wholer Fisher Newton Lewis
8 The atom other than C in a hetrocyclic compound is called as Hetroatom Hetroion Hetromolecule Hetroelement
9 The coordination number of iron in [Fe(H2O)6]3+is 2 3 4 6
10 What is the name of the comlex [Ni(CO)4] Tetracarbonylnickel (o) Tetracabonylnickel Tetracabonylnickel (II) Tetracabonylnickel (IV)
11 [Co(NH3)6]3+will form ______ structure Square planar Tetrahedral Octahedral Trigonal bipyamidal
12 Which is in differnet phase form other metals Ni Hg Cd Na
13 Which of the following is not related to transition metals They have a high tensile strength They are ductile They are malleable They have low melting points
14 Which of the following acts as ligand NH<sub>3</sub> NH<sub>2</sub>-- CH<sub>2</sub>-- CH<sub>2</sub>-- NH<sub>2</sub> C<sub>2</sub>O<sup>2-</sup><sub>4</sub> All these
15 Electronic configuration of Cu+2is 4S<sup>2</sup>, 3d<sup>9</sup> 4s<sup>-1</sup>, 3d<sup>10</sup> 4S<sup>0</sup>, 3d<sup>9</sup> None of these
16 The free spaces between the metal atoms and its crystal lattice are called Valance spaces Empty spaces Interstices None
17 Platinum (IV) chloride combines with ammonia to form compounds in which the coordination number of the platinum is 6. A formula unit on one of the compound contains a cation and only two chloride ions. What is the formula of this compound Pt(NH<sub>3</sub>)<sub>6</sub>CI<sub>4</sub> Pt(NH<sub>3</sub>)<sub>5</sub>CI<sub>4</sub> Pt(NH<sub>3</sub>)<sub>4</sub>CI<sub>4</sub> Pt(NH<sub>3</sub>)<sub>3</sub>CI<sub>4</sub>
18 Which of the following d-block elements can show the highest oxidation number in its compounds Chromium Copper Nickel Manganese
19 Titanium is used as a catalyst in Hydrogenation Dehydrogenation Polymerization of P.E. Oxidation of ammonia
20 Which of the following is a transition element Sr Sn Cr Pb
21 A phtotographic plate is coated with an emulsion of silver nitrate and AgCI AgI AgBr NaNO<sub>3</sub>
22 Stainless steel contains Cr upto 12% 18% 10% 5%
23 Corrosion may be prevented by Allcying Paints Metallic coatings All
24 Which of the following is used as disinfectant K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub> KMnO<sub>4</sub> K<sub>2</sub>MnO<sub>4</sub> K<sub>2</sub>CrO<sub>4</sub>
25 The oxidation number of Ni in [Ni(CO)4] is +1 0 +4 -4
26 The oxidation state of Fe in [Fe(CN)6]3-is +2 +3 +4 -3
27 The formula of curprite is Cu<sub>2</sub>S Cus Cu<sub>2</sub>O CuCO<sub>3</sub>
28 The geometry of [Co(NH3)6]3+is Tetrahedral Square planar Octahedral None of these
29 Which metal is used for catalytic hydrogenation of oils Cu Pt Ni Pd
30 The amount of Ni in stainless steel is 3% 4% 5% 8%
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