The species among the following that is not an electrophile is:
1.
2.
3.
4.
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The IUPAC name of the above-mentioned compound is:
1. cis-2-Chloro-3-iodo-2-pentene
2. trans-2-Chloro-3-iodo-2-pentene
3. cis-3-Iodo-4-chloro-3-pentene
4. trans-3-Iodo-4-chloro-3-pentene
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The IUPAC name of CH3CH=CHC≡CH is:
1. Pent - 3 - en - 1 - yne
2. Pent - 2 - en - 4 - yne
3. Pent - 1 - yn - 3 - ene
4. Pent - 4 - yn - 2 – ene
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The correct order of –I effect is:
1. -NR3+ > -OR > -F
2. -F > -NR3+ > -OR
3.-NR3+ > -F > -OR
4. -OR > -NR3+ > -F
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The chiral compound among the following is:
1. | 2-Methylpentanoic acid | 2. | Pentanoic acid |
3. | 4-Methyl pentanoic acid | 4. | None of the above |
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In the steam distillation of toluene, the pressure of toluene in the vapour is:
1. | Equal to the pressure of the barometer |
2. | Less than the pressure of the barometer |
3. | Equal to vapour pressure of toluene in simple distillation |
4. | More than the vapour pressure of toluene in simple distillation |
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The correct IUPAC name, among the following, is:
1. | Prop-3-yn-1-ol | 2. | But-4-ol-4-yne |
3. | But-3-ol-2-yne | 4. | But-3-yn-1-ol |
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An organic compound contains 69% carbon, and 4.8% hydrogen, the remainder being oxygen. The masses of carbon dioxide, and water produced when 0.20 g of this substance is subjected to complete combustion would be respectively -
1. 0.506 g, 0.0864 g
2. 0.906 g, 0.0864 g
3. 0.0506 g, 0.864 g
4. 0.0864 g, 0.506 g
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In the organic compound, the pair of hydridized orbitals involved in the formation of C2 – C3 bond is-
1. sp –
2. sp –
3. –
4. –
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Any type of chromatography shares which of the following characteristic?
1. Use of molecules that are soluble in water.
2. Use of inert carrier gas.
3. Calculation of Rf value for the molecule separated.
4. Use of a mobile and a stationary phase.
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