1
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

A bulb is rated at 150 watt, converting $8 \%$ energy into light. If energy of one photon is $4.42 \times 10^{-19} \mathrm{~J}$, how many photons are emitted by the bulb per second?

A

$2.71 \times 10^{19}$

B

$4.06 \times 10^{19}$

C

$27.2 \times 10^{19}$

D

$1.35 \times 10^{19}$

2
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Methane reacts with steam at 1273 K in the presence of nickel catalyst to form :

A

CO and $\mathrm{H}_2 \mathrm{O}$

B

$ \mathrm{CO}_2$ and $\mathrm{H}_2$

C

$ \mathrm{CO}$ and $\mathrm{H}_2$

D

$ \mathrm{CO}_2$ and $\mathrm{H}_2 \mathrm{O}$

3
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Compound $\mathrm{P}\left(\mathrm{C}_8 \mathrm{H}_8 \mathrm{O}\right)$ gives a red orange precipitate with 2,4-DNP reagent and it does not reduce Fehling's reagent. On drastic oxidation with chromic acid, $P$ gives an aromatic product $Q$ that produces effervescence on treating with aq. $\mathrm{NaHCO}_3$. Compounds P and Q , respectively, are :

A

NEET 2026 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 1 English Option 1

B

NEET 2026 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 1 English Option 2

C

NEET 2026 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 1 English Option 3

D

NEET 2026 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 1 English Option 4

4
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

$$ \text { Match List I with List II : } $$

List-I
List-II
A. $\mathrm{C}_2 \mathrm{H}_4$ I. $3 \sigma$ bonds, $2 \pi$ bonds
B. $\mathrm{C}_2 \mathrm{H}_2$ II. $3 \sigma$ bonds, one lone pair
C. $\mathrm{CH}_4$ III. $4 \sigma$ bonds
D. $\mathrm{NH}_3$ IV. $5 \sigma$ bonds, $1 \pi$ bond
Choose the correct answer from the options given below :
A

A-III, B-IV, C-II, D-I

B

A-IV, B-I, C-III, D-II

C

A-I, B-II, C-IV, D-III

D

A-II, B-III, C-I, D-IV