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ICSE-GRADE 10 CHEMISTRY-QUIZ-2
Quiz by Asma Mulla
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1. In Covalent Compounds, the bond is formed due to …………………. Of electrons.
2. ……………….number of electrons in the outer shell of a Nitrogen atom are NOT involved in the formation of a Nitrogen molecule.
3. Calcium has………………. number of electrons in the outermost shell.
4. A molecule of…………………. contains a double covalent bond.
5. ……………….number of electrons in the outer shell of a Oxygen atom are involved in the formation of a Water molecule.
6. In Ionic Compounds, the bond is formed due to …………………. of electrons.
7. A molecule of …………………. contains a triple covalent bond
8. ……………….number of electrons in the outer shell of a Oxygen atom are NOT involved in the formation of a Oxygen molecule.
9. Chlorine has………………. number of electrons in the outermost shell.
10. ……………….number of electrons in the outer shell of a Nitrogen atom are involved in the formation of Ammonia molecule.
11. ……………….number of electrons in the outer shell of a Oxygen atom are NOT involved in the formation of a Water molecule.
12. In the formation of Magnesium Chloride compound ………………. is the charge developed on the Chloride ion.
13. ……………….number of electrons in the outer shell of a Nitrogen atom are NOT involved in the formation of Ammonia molecule.
14. In the formation of Calcium Oxide compound ………………. is the charge developed on the Calcium ion.
15. What is the empirical formula of Butane?
16. To prevent iron from corrosion it is electroplated with
17. Electrolysis is the process in which a chemical reaction takes place at the expense of ………. Energy.
18. Ions discharged in electrolysis depends on the factor is
19. Which one of the following statements is NOT correct?
20. For electrolysis, we use the compound which should be a
21. The whole apparatus of electrodes, electrolytes and vessel containing them is called
22. Complete systematic equipment set up for electrolysis is known as
23. When aqueous Solution of NaCl is electrolyzed
24. What are the ions present in water?
25. The decomposition of liquid compound on passing an electric current through it is known as
26.Methylorange gives ____ colour when added to a solution of pH 8.
27. ____ is used as raw material in the preparation of plaster of Paris.
28. Which of the following pH values corresponds to an acidic solution?
29. The pH scale was proposed by ____.
30.Whichof the following is true regarding bases?
31. Milk contains a ……………
32.When HCl spills on skin, it leaves ____ stain on skin.
33.Toothenamel contains ____.
34. Epsom salt has ………water molecules.
35. When sodium chloride is dissolved in water, a ………. solution is formed.
36.Phenolphthalein gives ……. Colour in basic solution.
37.Which acid is present in baking powder?
38.____hydroxyl groups are present in ferric hydroxide.
39.Acids changes the orange colour of methyl orange to ____.
40. Atomic number of Magnesium element is ……...