Organic Chemistry Some Basic Principles and Techniques Test

Result

Organic Chemistry Some Basic Principles and Techniques Test - 71

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Weekly Quiz Competition

Question 1
1 / -0

Total number of $$\sigma$$ & $$\pi$$ bonds in a molecule $$C_{2}H_{2}$$ are respectively :

A
3, 2

B
4, 2

C
3, 1

D
2, 1
Question 2
1 / -0

$$CH_3-O-\underset{\displaystyle O}{\underset{\displaystyle ||}{C}}-\underset{\displaystyle OH}{\underset{\displaystyle |}{C}}H-CH=CH-\overset{\displaystyle O}{\overset{\displaystyle ||}{C}}-OH$$

How many functional groups are present in given compound?

A
$$2$$

B
$$3$$

C
$$4$$

D
None of the above

Solution
Question 3
1 / -0

Which of the following substrates is an electron donating group overall ?

A
$$- Br$$

B
$$- \underset{O}{\underset{||}{C}}CH_3$$

C
$$-OCH_3$$

D
$$-\overset{\bigoplus}{N} (CH_3)_3$$
Question 4
1 / -0

Total number of functional groups present in the given compound is:

A
7

B
10

C
8

D
9
Question 5
1 / -0

Nodal planes of $$\pi -bond(s)$$ in $$C{ H }_{ 2 }=C=C=C{ H }_{ 2 }$$ are located in:

A
All are in molecular planar

B
Two in the molecular plane and one in a plane perpendicular to the molecular plane which contains $$C-C\ \sigma -bond$$

C
One in the molecular plane and two in-plane perpendicular to the molecular plane which contains $$C-C\ \sigma -bond$$

D
Two in the molecular plane and one in a plane perpendicular to the molecular plane which bisects $$C-C\ \sigma -bond$$ at the right angle
Question 6
1 / -0

The ratio of $$\sigma $$-bond and $$\pi $$-bond in tetracyano ethylene is:

A
2:1

B
1:1

C
1:2

D
none of these

Solution
Question 7
1 / -0

What is the proportion of sigma $$(\sigma )$$ and $$pi(\pi )$$ bond 1,4- Benzoquinone ?

A
1 : 3

B
3 : 2

C
3 : 1

D
2 : 3
Question 8
1 / -0

The systematic name of $$ (CH_3)_2 CH-COOH $$ is:

A
2-propanoic acid

B
Isobutanoic acid

C
2-Methylpropanoic aid

D
2-methylbutanoic acid

Solution
Question 9
1 / -0

Which of the following has $$ p \pi-d \pi $$ bonding?

A
$${ \mathrm{NO}_{3}}^{-} $$

B
$${ \mathrm{BO}_{3}}^{3-} $$

C
$${ \mathrm{SO}_{3}}^{2-} $$

D
$${ \mathrm{CO}_{3}}^{2-} $$
Question 10
1 / -0

The number of C-atoms in second member of an ester is:

A
2

B
3

C
4

D
5

Solution

First member of an ester: $$HCOOCH_3$$
Second member: $$CH_3COOCH_3$$

So, number of carbon atoms in second member is 3.