Chemistry 9th Class English Medium Unit 3 Online Test With Answers

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Chemistry 9th Class English Medium Unit 3 Online Test

Sr. # Questions Answers Choice
1 None polar compounds are insoluble in Alcohol Benzene Ether Water
2 Ionic compund have Low melting and high boiling points Low melting and boiling point High melting and boiling points High meilting and low boiling points
3 Ionic compund are good conductors electricity in Solution Molten state Solid state both a and b
4 The compund formed by oppoite charges are known as. Metallic solids Ionic compounds Non-polar Covalent compound None of the above
5 Water has high boiling point as compared a alcohol due to Low density High surface tension Hydrogen bonding High vapour pressure
6 The boiling point of alcohal is <sub>44</sub><sup>o</sup>C 78<sup>o</sup>C 53<sup>o</sup>C 19<sup>o</sup>C
7 The boiling point of water is O <sup>o</sup>C 100 <sup>o</sup>C 35 <sup>o</sup>C 25 <sup>o</sup>C
8 The fore of attraction betwene water molecule is. Ionic bonding Covalent bonding Hydrgen Bonding Co ordinate Covalent bonding
9 Which of the following is an exampel of polar covalent compound. Cl2 H2 O2 HCl
10 Hydrogen bound ing is always found in Non-polar molecules Homoatomic molecules Polar Molecules All of the above
11 Metal have the tendency to lose elecrons due to. High ionization energies Low ionization energies Low electron affinity None of the above
12 Malleability is the property by virtue of which a metal can be drawn into. Rods Plates Sheets Wires
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