Chemistry 9th Class English Medium Unit 8 Online Test With Answers

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Chemistry 9th Class English Medium Unit 8 Online Test

Sr. # Questions Answers Choice
1 The haviest metal is Iron Lead Osmium Platinum
2 Which of the following is a metal Magnesium Carbon Hydrogen Nitrogen
3 Platinum alloyed with which metal is used as catalyst in automobiles as atalytic covertor. Gold Rhodium Palladium Both a and b
4 Which group elements has low ionization energies. Halogens Noble gases Alkaline Earth Metals Alkali Metals
5 Sodium metal has electrons 10 11 12 14
6 Metals posses. Ionic bond Covalent bond Co-ordinate covalent Metallic bond
7 All metals bear Positive charge Negative charge Both a and b None of these
8 Which are good conductor of heat and electricity Metals Non metals Metalloids All of these
9 Metals are teh elements which have. Electronegative character Electropositive character Both a and b None of the above
10 Metals lose their elecrons easily because. They are elecrnegativity They have electron affinity They are electropositive Good conductors of heat
11 Pure alkalis metals can be cut siply by knife but iron cannot bccause of alkali meals have Non metalic bonding Strong metallic bonding Weak metallic bonding Moderate metqllic bonding
12 Metals can form ions carrying carges. Uni positive Di positive Tri postive All of these
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