Five Year Papers

1.      Plastics are polymers of __________.

2.      From crude oil, additional quantity of petrol is obtained by __________ process.

3.      Tertiary alkyl halides react by __________ reaction mechanism.

4.      __________ period is incomplete.

5.      Elements, which follow actinium, are called __________ elements.

6.      Ionic hydrides are also called __________.

7.      Compounds with the general formula C_nH_2n + 2O are called __________.

8.      Resorcinol is not an alcohol but a __________.

9.      A ketone contianing different alkyl radicals is called __________ ketone.

10.  The hydrolysis of fats and oils with a strong alkali is called __________.

11.  __________ is active in the stomach of young children.

12.  The chemical name of Lunar caustic is __________.

13.  Aluminium resists corrosion due to the formation of __________.

14.  EDTA is a __________ ligand.

15.  The chemical formula of rust is __________.

16.  Sub-Group B elements are called __________ elements.

17.  The hybridization of carbon in graphite is __________.

18.  The chemical name of vitamin B₂ is __________.

19.  The reactions between metallic sodium and alkyl halides are called __________ reaction.

20.  The fractional distillation of crude petroleum yields only __________% petrol.

21.  Starch and Cellulose are the examples of __________ carbohydrates.

22.  AgCl dissolves in ammonia to form __________.

Chapter 1

Periodic Classification of Elements

1.         In 1913 Moseley, A British physicist, found that a __________ is the fundamental property of an atom.

2.         In the modern Periodic table recommended by the International Union of Pure and Applied Chemistry (IUPAC) in 1982, the elements are arranged in the ascending order of __________.

3.         Horizontal rows of elements in the periodic table are called __________.

4.         The vertical columns of elements arranged in the Periodic table are called __________.

5.         In the Modern Periodic Table there are __________ periods.

6.         The first period of Modern Periodic Table contains __________elements.

7.         Hydrogen lies in __________ Period.

8.         Helium lies in __________ Period.

9.         All the elements belonging to the second period are __________.

10.     Second period contains __________ elements.

11.     The elements of the second period of the modern Periodic table are __________.

12.     Third period of periodic table contains __________ elements.

13.     The elements of the fourth period of the modern periodic table are __________.

14.     Fourth period of Modern Periodic Table contains __________ elements.

15.     Fifth period of Modern Periodic Table contains __________ elements.

16.     Those elements, which have ‘d’ orbitals in the process of completion in the form of ions or atoms, are called __________.

17.     Elements in IB group are called __________.

18.     Those elements, which involve ‘s’ orbital filling in their valence shells, are called __________.

19.     The sixth period of Modern Periodic Table contains __________ elements.

20.     The longest period of modern Periodic Table is __________.

21.     The eight ‘s’ and ‘p’ block elements in the 4^th and 5^th periods are known as __________.

22.     The elements of group IA and IIA are classified as __________ elements.

23.     The seventh period of modern Periodic table contains __________ elements.

24.     The elements on the right hand side of the Periodic table are called __________.

25.     The outer most shell involved in chemical bonding are called __________.

26.     The number of electrons in the outermost or valence shells is called __________.

27.     Na₂O is strongly __________ in nature.

28.     Cl₂O₇ is strongly __________ in nature.

29.     Greater the electronegativity of an element, stronger is the __________ character of its oxide.

30.     In case of transition elements, the last electrons are received by __________.

31.     Elements in group IB, IIB through VIIB are known as __________.

32.     Elements in group IB, IIB through VIIB are known as __________.

33.     Elements in the group VI A and __________ are the most active non-metals.

34.     The correct order of second ionization potential of carbon, nitrogen, oxygen and fluorine is __________.

35.     The elements having seven valence electrons are known as __________.

36.     The elements of group IIIA to VIIA are called __________.

37.     Maximum number of electrons present in sixth period is __________.

38.     The elements of group VIIIA are called __________.

39.     In case of inner transition elements the last electrons are received by __________.

40.     In case of outer transition elements the last electron are received by __________.

Chapter 2

Hydrogen

1.      Hydrogen was first prepared by Cavendish in 1766 by the action of __________.

2.      Hydrogen is evolved by the action of cold diluted HNO₃ on __________.

3.      Hydrogen is found in nature in combined state. The most abundant compound of hydrogen is __________.

4.      The electronic configuration of hydrogen atom is __________.

5.      Hydrogen forms slat like hydrides with the elements of __________.

6.      Hydrogen forms interstitial hydrides with the elements of __________.

7.      An example of covalent hydride is __________.

8.      Alkali metals need __________ electron to complete their outermost shells.

9.      The number of isotopes of hydrogen is __________.

10.  ₁H¹ is  symbol of __________.

11.  ₁H² is the symbol of __________.

12.  ₁H³ is the symbol of __________.