Entry Test MCQ :: Diagnostic Test

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41.

The most paramagnetic element is

A.	Iron	B.	Cobalt
C.	Chromium	D.	Manganese

42.

In the complex [Cr(OH)3(H2O)3] the coordination number is

A.	2	B.	3
C.	4	D.	6

43.

Which one of the following looks odd

A.	H2SO4	B.	KMnO4
C.	H2S	D.	K2CrO4

44.

A great variety of the organic compounds is due to its property of carbon

A.	Show tetravalency	B.	Exhibit catenation
C.	Show isomerism	D.	Can form multiple bonds

45.

In 1 - pentene -4- yne the carbon exhibit hybridization

A.	sp3 - sp2	B.	sp2 - sp
C.	sp2 - sp	D.	sp3 - sp2 - sp

46.

Vinyl acetylene combines with hydrochloric acid produces

A.	Diviny1 acetylene	B.	Ethylidine dichloride
C.	Chloroprene	D.	1 - 3 - 3 - trichloro butane

47.

When benzene is heated in air with V2O5 at 450?C yields

A.	Phenol	B.	Maleic anhydride
C.	Glyoxal	D.	Benzoic acid

48.

When toluene reacts with chlorine in sunlight the first major product is

A.	Benzy1 chloride	B.	Benzal dichloride
C.	O-chlorotoluene	D.	O-chlorotoluene and P-chlorotoluene

49.

Which one of the following will be sulphonated readily?

A.	Chlorobenzene	B.	Toluene
C.	Nitrobenzene	D.	Benzene

50.

Which one of the following is not a good leaving group ?

A.	HSO4-	B.	Cl-
C.	OH-	D.	Br-