Entry Test MCQ :: Diagnostic Test
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41. |
The most paramagnetic element is |
A. |
Iron |
B. |
Cobalt |
C. |
Chromium |
D. |
Manganese |
Answer: Option A
Explanation:
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42. |
In the complex [Cr(OH)3(H2O)3] the coordination number is |
Answer: Option D
Explanation:
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43. |
Which one of the following looks odd |
Answer: Option C
Explanation:
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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 |
Answer: Option B
Explanation:
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45. |
In 1 - pentene -4- yne the carbon exhibit hybridization |
A. |
sp3 - sp2 |
B. |
sp2 - sp |
C. |
sp2 - sp |
D. |
sp3 - sp2 - sp |
Answer: Option D
Explanation:
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46. |
Vinyl acetylene combines with hydrochloric acid produces |
A. |
Diviny1 acetylene |
B. |
Ethylidine dichloride |
C. |
Chloroprene |
D. |
1 - 3 - 3 - trichloro butane |
Answer: Option C
Explanation:
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47. |
When benzene is heated in air with V2O5 at 450?C yields |
A. |
Phenol |
B. |
Maleic anhydride |
C. |
Glyoxal |
D. |
Benzoic acid |
Answer: Option B
Explanation:
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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 |
Answer: Option A
Explanation:
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49. |
Which one of the following will be sulphonated readily? |
A. |
Chlorobenzene |
B. |
Toluene |
C. |
Nitrobenzene |
D. |
Benzene |
Answer: Option B
Explanation:
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50. |
Which one of the following is not a good leaving group ? |
Answer: Option C
Explanation:
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