HighDip.com
Home
About
Apps
Contact
Games
chemistry 05 oxidation reduction
Pg.No.
1
<<
>>
Page 1
Q.1. Addition of oxygen to a molecule is known as?
Q.2. Removal of hydrogen from a molecule is known as?
Q.3. Addition of electronegative element or group to a molecule is known as?
Q.4. Removal of electronegative element or a group from a molecule is known as?
Q.5. Addition of hydrogen to a molecule is known as?
Q.6. Removal of oxygen from a molecule is known as?
Q.7. Addition of electropositive element or group to a molecule is known as?
Q.8. Removal of electropositive element or a group from a molecule is known as?
Q.9. Loss of electron from a molecule or atom is known as?
Q.10. Gain of electron by a molecule or atom is known as?
Q.11. A substance which undergoes reduction is known as?
Q.12. A substance which undergoes oxidation is known as?
Q.13. A reaction in which oxidation and reduction takes place simultaneously is known as?
Q.14. The charge present on atom in molecule ion is known as?
Q.15. Oxidation number can have values ranging from?
Q.16. Oxidation number of an atom in free state is equal to?
Q.17. Oxidation number of alkali metals in molecule is ?
Q.18. Which metals are known as alkali metals?
Q.19. Oxidation number of alkaline earth metals in molecule is ?
Q.20. Which metals are known as alkaline earth metals?
Q.21. Hydrogen has oxidation numbers of?
Q.22. Oxygen has oxidation numbers of?
Q.23. Sum of oxidation number of atoms in a molecule is equal to?
Q.24. Sum of oxidation number of atoms in an ion is equal to?
Q.25. The reaction in which a compound decomposes (normally or by heat) to give two or more components out of which atleast one is in elemental state, is known as?
Q.26. The reaction in which compounds are formed as a result of chemical combination of two or more elements, is known as?
Q.27. The reactions in which an atom or ion present in a compound gets replaced by an atom or ion of another element, is known as?
Q.28. The chemical reaction in which only one substance is oxidised as well as reduced simultaneously, is known as?
Q.29. The reaction in which one or more atoms or groups present in organic molecule get substituted or replaced by suitable atoms or groups, is known as?
Q.30. The reaction in which acid reacts with a base to form salt and water, is known as?
Q.31. The reaction in which the reactants combine to form products and again products uncombine to reactants is known as?
Q.32. The reactions which are not reversible are known as?
<<
>>