Chemistry Fsc Part 2 Online Test With Answers

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Chemistry Fsc Part 2 Online Test

Sr. # Questions Answers Choice
1 In which group of periodic table is the element which has atomic number 14. II IV III VI
2 Mark the incorrect statement Metallic character increase down the group Metallic character increase from left to right along a period Metallic character decrease from left to right along a period Metallic character remains the same down the group
3 Electron affinity is measure of energy Required to remover the electron Released by adding an electron Required to excite an electron Released by removing an electron
4 Ionization energy of calcium is. Lower than that of barium Lower than that of magnesium Higher than that of beryllium Lower than that of strontium
5 Hydrogen resembles in properties with IA, IV A and VII A elements III A, IV A and V A elements II A, IV A and VI A elements II A, III A and VII A elements
6 Which statement is incorrect. All the metals are good conductors of electricity All the metals are good conductor of heat All the metal form positive ions All the metal form acidic oxides
7 Mark the correct statement. Na+ is smaller than Na atom Na+ is large than Na atom Cl- is smaller than Cl atom cl- and Cl are equal in size
8 Keeping in view size of atoms ,which order is the correct one. Mg > Sr Ba > Mg Lu > Ce Cl > I
9 Ecosystem is a smaller unit of lithospher hydroshper atmosphere biosphere
10 Fungicides are the pesticides which Control the growth of fungus Kill insects Kill plants Kill herbs
11 The avoid the formation of toxic compounds with chlorine which substance is used for disinfecting water KMnO<sub>4</sub> O<sub>3</sub> Alums Chloramines
12 Peroxyacetylnitrate (PAN) is an irritant to human beings and it affects eyes ears stomach nose
13 The pH range of the acid rain is 7-6-5 6.6-6 6-5.6 less than 5
14 The news paper can be recycled again and again as many times as 5 3 4 2
15 Water is disinfected by a substance to avoid toxification KMnO<sub>4</sub> Alums O<sub>3</sub> Cl<sub>2</sub>
16 In water the concentration of dissolved O2should be 1-3 ppm 2-4 ppm 4-8 ppm 8-12 ppm
17 The main pollutant of leather tanneries in the waste water is due to Lead Chromium VI Copper Chromium III
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