Chemistry 10th Class English Medium Unit 10 Online Test With Answers

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Chemistry 10th Class English Medium Unit 10 Online Test

Sr. # Questions Answers Choice
1 Acid means Sour Bitter Sweet Salty
2 The word acid is derived from the. Greek word Latin word English word Arabic word.
3 Who proved that the presence of hydrogen as the main constituent of all acids. Lavoisier Humphrey Davy Dalton Arrhenius
4 Lavoisier named binary compounds of oxygen acids in . 1787 1790 1815 1828
5 Jabir Bin Haiyan prepared. Nitric Acid Hydrochloric acid Sulphueric Acid All of these
6 According to the Lewis concept acid is a substance which can. Donate a proton Donate a pair of electron Accept a proton Accept a pair of electron.
7 Which one of the following is Lewis base? AlCl<sub>3</sub> H<sup>+</sup> NH<sub>3</sub> BF<sub>3</sub>
8 You want to dry a gas which one of the following salt you will use? CaCl<sub>2</sub> NaCl CaO Na<sub>2</sub>SIO<sub>3</sub>
9 The water of crystallization is responsible for the. Melting points of crystals Boiling points of crystals Shapes of crystals Transition point of crystals
10 The product of Lewis acid-base reaction is called adduct. The bond between the adduct species is. Ionic Covalent Metallic Co-ordinate covalent
11 Which one of the following species is not amphoteric? H<sub>2</sub>O NH<sub>3</sub> HCO<sub>3</sub> SO<sub>4</sub>
12 What is the POH of a 0.02 M Ca(OH)2? 1.698 1.397 12.31 12.61
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