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	Whof the following represent sand?	NaCl CaCO3 H2O CH2O
2	Empirical formula of acetic acid (CH3COOH) is	CHO CH CH2O None of these
3	Emperical Formula of Glucose is	CH2O CHO CHO2 C2HO
4	Empricial formula of sand is.	SiO2 SiO3 SiO4 SiO
5	Whcih law is obeyed in chemicla calculations?	Law of mass action Law of conservationof mass Law of definite proportion Both a and b
6	Without stoichiometry which industry cannot exist.	Meta Petroleium Leather Chemical
7	Stochiometric calculators are used to prepare.	Soaps Shampo Perfumes All of these
8	Which of the following is insoluble salt	KCl AgCl NaCl CaCl2
9	Avogadrao was a scientist	Italian Greek Garman African
10	Formula of Ozone.	O<sub>2</sub> S<sub>8</sub> CO<sub>2</sub> O<sub>3</sub>
11	What mass of 95% CaCO3 will be requred to neutralize 50 cm 3 of 0.5 M HCl solution.	9.5 g 1.45 g 1.32 g 1.25 g
12	When one mole of each of the following compounds is reacted with oxygen, which wil produce the maximum amount CO2?	Carbon Ethane Diamond Methane