9th Class Chemistry Chapter Wise Online MCQ Test With Answers PDF English Medium

Chemistry 9th Class English Medium Online Test

Sr. #	Questions	Answers Choice
1	Which one of the following compounds will hae the highest percentage of the mass of nitrogen?	N2H4 CO (NH2)2 NH3 NH2OH
2	What is the mass of AI in 204 g of aluminium oxide Al₂O₃	26 g 54 g 108 g 27 g
3	A nceklaee has 6 g of diamonds in it . What are the numberof carbon atoms in it?	3.01 x 10<sup>23</sup> 1.003 x 10<sup>23</sup> 12.04 x 10<sup>23</sup> 6.02 x 10<sup>23</sup>
4	How many moles are there in 25 g of H₂SO₄?	0.765 Moles 0.255 moles 0.4 moles 0.51 moles
5	How many atoic mass units (amu) are there in one gram.	1 amu 6.022 x 10<sup>23</sup> 10 amu 6.022 x 10<sup>22</sup>
6	Which is the correct formula of calcium phosphide.	CaP Ca<sub>3</sub>P<sub>2</sub> CaP<sub>2</sub> Ca<sub>2</sub>P<sub>3</sub>
7	How many atoms are present in one gram of H2O?	1002 x 10<sup>23</sup> atom 6.022 x 10<sup>23</sup>atom 0.334 x 10<sup>23</sup>atom 2.004 x 10<sup>23</sup>atom
8	None polar compounds are insoluble in	Alcohol Benzene Ether Water
9	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
10	Ionic compund are good conductors electricity in	Solution Molten state Solid state both a and b
11	The compund formed by oppoite charges are known as.	Metallic solids Ionic compounds Non-polar Covalent compound None of the above
12	Water has high boiling point as compared a alcohol due to	Low density High surface tension Hydrogen bonding High vapour pressure

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