9th Class Chemistry Chapter 7 Online MCQ Test With Answers PDF English Medium (Electrochemistry)

Chemistry 9th Class English Medium Unit 7 Online Test

Sr. #	Questions	Answers Choice
1	Caustic chemical drain cleaner are captable of dissolving.	Hair Food Grease All of these
2	Acid rain has pH less than.	6 7 7.4 5.6
3	Which is used to manufacture soap?	NH4OH Ca(OH)2 NaOH Mg(OH)2
4	Alkalis react with ammonium salts to librate.	CO2 SO2 H2 NH3
5	When acids react with metal with carbonates and bicarbonates which gas is produced.	N2 H2 Cl2 CO2
6	When acids react with metals which gas is evolved?	O2 N2 Cl2 H2
7	Whcih acid is present in our stomach.	Nitirc Acid Hydrochloric acid Sulphuric acid All of the above
8	A reaction between an acid and a base produces	Salt and an acid Sald and base Salt and water Salt and gas
9	A substance whcih can behave as an acid as well as a base is called	Amphoteric specie Acid Base Neutral specie
10	According to Bronsted and Lowry concept, an acid is a substance that can donate.	Proton Electron pair Neutron Electron
11	Ammonia is a base, because it	Ionizes in water to give OH- Ions Can accept proton Contains OH group Can accept an election pair
12	Which of the following is Bronsted base?	HCl CH3COOH H2O NH3