ECAT Chemistry MCQ's Test For Full Book With Answers

ECAT Chemistry MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 Which of the following is a natural polymer? Terylene Polysaccharide Nylon Polyethene
2 Coagulent used in water treatment Gypsum Dolomite Asbestos Alum
3 Which Amino acid can be synthesized by over body. Basic amino acids Acidic amino acids Essential amino acids Non-essential amino acids
4 Which of the following statement is correct. Formaldehyde is used in silvering of mirror Propanol and propanone behave similarly in Tollen's seagent Acetone on reduction gives primary alcohols Ketones gives brick red color with Fehling's solution
5 The oxidation states of Boron are +1,+2,+3 -1,-2,-3 +1,-1 +3,+1
6 The periodic table gives basic framework to study the periodic. Elements only Compounds only Elements and their compounds Elements and their inorganic
7 Ethanol can be prepared by fermenting the following in the presence of oxygen. Protein Oil Glucose None of these
8 Which of the following is NOT used as fertilizer Anhydrous ammonia Sodium hydroxide Calcium nitrate Ammonium phosphate
9 Benzene has an extraordinarily stable molecule because of. Delocalized electron cloud Localized electron cloud Regular tetrahedral structure Irregular hexagonal structure
10 Aqua Regia is found when HCl and NHO3 mixed in following ration. 1 : 1 2 : 1 1 : 3 3 : 1
11 Alkanes are non-polar or weakly polar compounds that are insoluble in. Polar solvent Uni-polar solvent Non-polar solvent None of these
12 The following is an alcohol CH3-CH2-OH CH3-O-CH3 CH3COOH All of these
13 The following functional group is present in both aldehydes and ketones. Carbonyl Hydroxyl Oxyboron None
14 Potassium permanganate is. A powerful reducing agent A powerful oxidizing agent A redox agent An alkaline compound
15 The transitions element Are all metals Are good conductor of heat Show variable oxidation states All of the above
16 The noble gas have Very low ionization energies High boiling points No electron pair interaction No van Der Waal's forces
17 At Murree hills water will boil at about. 102<sup> o</sup>C 98 <sup>o</sup>C 69 <sup>o</sup>C 100 <sup>o</sup>C
18 When water freezes, is occupies. 9% more space 9% less space Same amount of space None of the abvoe
19 The volume of a gas at 0oC is 100 m3, what will be the volume of the same gas 546 oC, assuming that pressure remains constant. 5460 cm3 300 cm3 200 cm3 546 cm3
20 Alkanes or paraffin's are made up of. Carbon, hydrogen and oxygen only Carbon, hydrogen and Magnesium only Carbon, hydrogen and nitrogen only Carbon and hydrogen only
21 Which of the following ions has more electrons than protons and more protons than neutrons. D- D2O+ He+ OH-
22 Steel is manufactured by open Hearth process from. Wrought iron Cast iron Steel scrap All of the above
23 Pickle when placed in the path of current. Will conduct current Will not conduct current Will become unfit to eat None of the above
24 To ensure that ethanol is not used for drinking purpose it is converted to methylated spirit by adding. 10% methanol and a little acetone 10% petrol and little diesel 50% Alcohol Only 10% methanol
25 Complete the reaction : KMnO4+FeSO4+H2SO4 K<sub>2</sub>SO<sub>4</sub>+MnSO<sub>4</sub>+Fe<sub>2</sub>O+H<sub>2</sub>O K<sub>2</sub>SO<sub>4</sub>+MnSO<sub>4</sub>+Fe<sub>2</sub>(SO<sub>4</sub>)+H<sub>2</sub> K<sub>2</sub>SO<sub>4</sub>+MnSO<sub>2</sub>+Fe(SO<sub>4</sub>)+H<sub>2</sub>O K<sub>2</sub>SO<sub>4</sub>+MnSO<sub>4</sub>+Fe<sub>2</sub>(SO<sub>4</sub>)+H<sub>2</sub>O
26 Which of the following electronic configurations represents an element that forms a simple ion with a charge of +3 1s<sup>2</sup>,2s<sup>2</sup>,2p<sup>6</sup>,3s<sup>2</sup>,2p<sup>1</sup> 1s<sup>2</sup>,2s<sup>2</sup>,2p<sup>6</sup>,3s<sup>2</sup>,3p<sup>3</sup>,3d<sup>1</sup> 1s<sup>2</sup>,2s<sup>2</sup>,2p<sup>2</sup>,2p<sup>1</sup>,2p<sup>2</sup> 1s<sup>2</sup>,2s<sup>2</sup>,2p<sup>6</sup>,3s<sup>2</sup>,3p<sup>6</sup>
27 Which of the electronic configuration of nitrogen in correct? 1S<sup>2</sup>,2S<sup>2</sup>,2P<sup>1</sup>,2P<sup>1</sup>,2P<sup>1</sup> 1S<sup>2</sup>, 2S<sup>2</sup>, 2P<sup>3</sup> 1S<sup>2</sup>,2S<sup>2</sup>,2P<sup>2</sup>,2P<sup>1</sup>,2P<sup>2</sup> 1S<sup>2</sup>,2S<sup>2</sup>,2P<sup>6</sup>,3S<sup>2</sup>,3P<sup>6</sup>
28 Lead acid batteries discharge with time because of. Deposition of PbSO4, at anode Deposition of PbSO4 at cathode Both A and B Acid neutralizes with time
29 In an alkaline battery the anode, the cathode and electrolyte are respectively. Manganese dioxide, Zinc, sodium hydroxide Zinc, Manganese dioxide, Sodium hydroxide Zinc, manganese dioxide, potassium hydroxide Manganese dioxide, zinc, potassium hydroxide
30 In liquids, inter molecular force are. Very weak Very strong Reasonable strong Rubber
Download This Set

Is this page helpful?