chemistry

MODERN PERIODIC TABLE

1.         Which of the following pair of elements belong to the same group of the

	periodic table?
	1)	Mg, Cs		2) Mg, Sr	3)	Mg, Cl	4) Na, Cl
2.	The number of elements present in 2nd, 3rd, 4th and 5th periods of
	modern periodic table respec tively are
	1)	2, 8, 8 & 18			2)	8, 8, 18 & 18
	3)	8, 18, 18 & 32			4)
						8, 8, 18 & 32
3.	Elements of a same group will have same
	1)	Chemical properties			2) Outer Elec ron c Configuration
	3)	Number of valency electrons			4) All of these
4.	The general electronic configuration of elements of Boron family
	1) ns2 np4			2) ns2 np3	3) ns2 np1		4) ns2 np2

5.         In which of the following group Outer shell configuration is not same for

all the elements

1) IIA                              2) IIB                          3) Zero                         4) VA

6.        The first and last elements of 6th period are respectively

1) Cs & Xe		2) Fr & Rn	3) Cs & Rn	4) Cs & Ra
7.   Element with atomic number 35 belongs to
1)	Group.VA and period IV		2) Group VIA and period III
3)	Group VIIA and period IV		4) Group IVA and period V

8.        Long Form of the the periodic table is graphical representation of

	1)		Pauli’s exclusion principle					2)	Bohr’s model
	3)		Hund's rule					4)	Aufbau principle
	9.   Which			pairs of atomic numbers in the following represents elements of
	the same group?
	1)		11, 20	2) 12, 28				3)	9, 35			4) 18, 26
10.		The total number of gaseous elements are
		1)	8			2) 9	3)		10				4) 11
12.		Identify the correctly matched set among the following
		1)	Chromium - d - block - representative element
		2)	Sodium - d-block-inner transition element
		3)	Thorium - f - block - transition element
		4)	Lanthanum - d - block - transition element
13.		The numberof incompletely filled shells in inner								ransiti n elements is
		1)	Zero			2) One	3)		Two				4) Three
14.		The Colour of most of the transition metal ions is due to
		1) d-d transition in U.V region					2) d-d transition in visible region
		3)	Their Higher Nuclear Charge				4)		Variable Oxidation States
15.		‘Rare earths’ are
		1)	Lanthanides				2) f-block elements
		3)	Inner transition elements				4)		All
16.		The lightest tr				nsition element is
		1)	Scandium			2) Zinc	3) Copper			4) Mercury
17.		The longest group in Modern periodic table is
			.
		1)	IA
						2) VIIA	3)		IIIB	4) VIIB
18.		Atomic numbers of Inert gas elements are
		1)	2, 10, 18, 36, 54, 8				2)		9, 17, 35, 53, 85
		3)3, 11, 19, 37, 55, 87					4)		6, 14, 32, 50, 82

19.     Most of the non-metals in the long form of the periodic table are present in

1) p-block                     2) f-block                  3) d-block                    4) s-block

20.  Metal used as catalyst in the hydrogenation of vegetable oils

1)

Iron

2) Molybdenum

3) Nickel

4) Any of these