Chemistry 9th Class English Medium Online Test With Answers

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Chemistry 9th Class English Medium Online Test

Sr. # Questions Answers Choice
1 A yellow solid element exists in allotropic forms whic is also present in fossil fuel. Indicate the name Iodine Carbon Sulphur Aluminium
2 Which is the softtest metal. Zn Ca Na Al
3 In which period and group yu will place the elemnt whic is an important part of the solar cell? Third period and Sixth a grop Group 16 Third priod and forth A group Group 14 Second period and forth A group Group Third prod and fifth A group Group 15
4 Caustic chemical drain cleaner are captable of dissolving. Hair Food Grease All of these
5 Acid rain has pH less than. 6 7 7.4 5.6
6 Which is used to manufacture soap? NH4OH Ca(OH)2 NaOH Mg(OH)2
7 Alkalis react with ammonium salts to librate. CO2 SO2 H2 NH3
8 When acids react with metal with carbonates and bicarbonates which gas is produced. N2 H2 Cl2 CO2
9 When acids react with metals which gas is evolved? O2 N2 Cl2 H2
10 Whcih acid is present in our stomach. Nitirc Acid Hydrochloric acid Sulphuric acid All of the above
11 A reaction between an acid and a base produces Salt and an acid Sald and base Salt and water Salt and gas
12 A substance whcih can behave as an acid as well as a base is called Amphoteric specie Acid Base Neutral specie
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