AIEEE 2010 | Basics of Organic Chemistry Question 138 | Chemistry

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AIEEE 2010

MCQ (Single Correct Answer)

-1

Out of the following, the alkene that exhibits optical isomerism is

3–methyl–2–pentene

4–methyl–1–pentene

3–methyl–1–pentene

2–methyl–2–pentene

AIEEE 2010

MCQ (Single Correct Answer)

-1

The correct order of increasing basicity of the given conjugate bases (R = CH₃) is

$$RCO\overline O$$ < HC = $$\overline C$$ < $$\overline R$$ < $$\overline NH_2$$

$$\overline R$$ < HC = $$\overline C$$ < $$RCO\overline O$$ < $$\overline NH_2$$

$$RCO\overline O$$ < $$\overline NH_2$$ < HC = $$\overline C$$ < $$\overline R$$

$$RCO\overline O$$ < HC = $$\overline C$$ < $$\overline NH_2$$ < $$\overline R$$

AIEEE 2010

MCQ (Single Correct Answer)

-1

29.5 mg of an organic compound containing nitrogen was digested according to Kjeldahl’s method and the evolved ammonia was absorbed in 20 mL of 0.1 M HCl solution. The excess of the acid required 15 mL of 0.1 M NaOH solution for complete neutralization. The percentage of nitrogen in the compound is

59.0

47.4

23.7

29.5

AIEEE 2009

MCQ (Single Correct Answer)

-1

Arrange the carbanions, $${(C{H_3})_3}\overline C $$, $$\overline C C{l_3}$$ , $${(C{H_3})_2}\overline C H$$, $${C_6}{H_5}\overline C H{}_2$$ in order of their decreasing stability :

$${(C{H_3})_2}\overline C H$$ > $$\overline C C{l_3}$$ > $${C_6}{H_5}\overline C H{}_2$$ > $${(C{H_3})_3}\overline C $$

$$\overline C C{l_3}$$ > $${C_6}{H_5}\overline C H{}_2$$ > $${(C{H_3})_2}\overline C H$$ > $${(C{H_3})_3}\overline C $$

$${(C{H_3})_3}\overline C $$ > $${(C{H_3})_2}\overline C H$$ > $${C_6}{H_5}\overline C H{}_2$$ > $$\overline C C{l_3}$$

$${C_6}{H_5}\overline C H{}_2$$ > $$\overline C C{l_3}$$ > $${(C{H_3})_3}\overline C $$ > $${(C{H_3})_2}\overline C H$$

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