9th Class Chemistry Chapter 4 Online MCQ Test With Answers PDF English Medium (Structure of Molecules)

Chemistry 9th Class English Medium Unit 4 Online Test

Sr. #	Questions	Answers Choice
1	How many number of moles are equivalent to 8 gram of CO2.	0.18 0.15 0.24 0.21
2	The molecular mass of H2SO4 is.	9.8 g 98 amu 98 g 9.8 amu
3	The mass of one molecule of water is.	18 g 18 mg 18 kg 18 amu
4	If one mole of carbon contains x atoms what is the number of atoms contained in 12 g of Mg.	1.5 x 0.5 x x 2x
5	Whcih term is the same for one mole of oxgen and one mole of water.	atoms mass Molecules Volume
6	What is the mass of 4 moles of hydrogen gas.	1 g 1.008 g 8.064 g 4.032 g
7	How many moels of molecules are there in 16 g oxygen.	0.05 0.1 0.5 1
8	A compound with chemicla formula Na₂CX₃ has formula mass 106 ami. Atomicmass of the elemetn X is.	16 23 12 106
9	40 g of H₃PO₄ contains numebr of moles	0.58 g 4.8 g 5.8 g 0.408 g
10	How many atom of carbon are present in one molecule of glucose.	11 22 12 6
11	Number of moels in 29.25 g NaCl is.	0.50 0.25 0.21 0.75
12	Mass of 3 moles of oxygen atoms is.	64 g 16 g 32 g 48 g