The IUPAC name of the given compound is:
1. Hexane-3,5-dione
2. Hexane-2,4-dione
3. Hex-2,4-dione
4. Hex-3,5-dione
The IUPAC name of the given compound is-
1. Hexa-1,3-dien-5-yne
2. Hexa-3,5-dien-1-yne
3. Hexa-1,3-en-5-yne
4. Hexane-1,3-dien-5-yne
Match the structures given in column I with the corresponding IUPAC names given in column II and choose the correct option.
Column I | Column II |
A. | i. Pent-4-en-2-ol |
B. | ii. Cyclohex-2-en-1-ol |
C. | iii. 6-Hydroxy-heptanal |
D. | iv. 2-Chlorohexane |
E. | v. 3- Nitrocyclohexene |
1. A = iii; B = iv; C = v; D = ii; E = i
2. A = iii; B = iv; C = ii; D = v; E = i
3. A = iv; B = i; C = v; D = iii; E = ii
4. A = iv; B = i; C = ii; D = v; E = iii
Match the items in column I with the items in column II.
Column I | Column II |
a. o-Ethylanisole | i. |
b. p-Nitroaniline | ii. |
c. 2,3 - Dibromo -1 - phenylpentane | iii. |
d. 4-Ethyl-1-fluoro-2-nitrobenzene | iv. |
The correct option is-
1. | a = ii; b = iv; c = i; d = iii | 2. | a = ii; b = i; c = iv; d = iii |
3. | a = iv; b = i; c = ii; d = iii | 4. | a = ii; b = iii; c = iv; d = i |
The incorrect curved-arrow notation that shows the formation of reactive intermediates in the following compound is-
1. | |
2. | |
3. | |
4. | All of the above |
Column I (Molecules) |
COLUMN II (Nature of molecule) |
a. (CH3)3N: | i. Electrophile |
b. \(H_3C-\overset{+}{C}=O\) | ii. Nucleophile |
c. \(\overset{+}{N}O_2\) | |
d. H2N:- |
a | b | c | d | |
1. | ii | ii | ii | i |
2. | ii | ii | ii | ii |
3. | ii | i | i | ii |
4. | ii | i | ii | ii |
Consider the following molecule.
(a) H3C-H, H3C-Br
(b) H3C-NH2, H3C-OH
(c) H3C-OH, H3C-SH
The bond which is more polar in the given pairs of molecules is:
1. | C-H bond is more polar than C-Br bond; C-O is more polar than C-N and C-S bond |
2. | C-Br bond is more polar than C-H bond; C-O is more polar than C-N and C-S bond |
3. | C-Br bond is more polar than C-H bond; C-N is more polar than C-O and C-O bond is more polar than C-S |
4. | None of the above |
Consider the following compound:
Carbon with minimum impact of negative inductive effect of Br is -
1. C1
2. C2
3. C3
4. All have same inductive effect
The correct resonance structures of CH3COO- among the following are:
1. | |
2. | |
3. | |
4. |
Consider the possible resonating structures of CH2=CH–CHO is as follows:
The correct sequence of stability is-
1. II > I > III
2. III > I > II
3. I > III > II
4. I > II > III