CUET · CHEMISTRY · PYQ PAPER 2023
1 mole of a symmetrical alkene on ozonolysis gives 2 moles of an aldehyde with molecular mass 44w. The alkene is
- A Ethene
- B Propene
- C But-1-ene
- D But-2-ene
Answer & Solution
Correct Answer
(D) But-2-ene
Step-by-step Solution
Detailed explanation
Molecular mass of aldehyde = 44. \( \text{R-CHO} \rightarrow \text{R} + 29 = 44 \rightarrow \text{R} = 15 (\text{CH}_3) \). Aldehyde: \( \text{CH}_3\text{CHO} \). Symmetrical alkene yielding 2 moles of \( \text{CH}_3\text{CHO} \) is \( \text{CH}_3\text{CH}=\text{CHCH}_3 \)…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from CHEMISTRY
- Read the passage carefully and answer the Questions
The decomposition of \(N_2O_5\ (g)\) is given as
\(N_2O_5(g) \rightarrow 2NO_2(g) + \frac{1}{2}O_2(g)\)
The above reaction is found to be of first order.
Select the correct statement for the half life of the given reactionCUET 2025 Easy - Read the passage carefully and answer the Questions
Haloalkanes undergo nucelophilic substitution reactions owing to the polarity of C X bond. The nucleophile reacts with the haloalkane on the carbon possessing a partial positive charge holding the halogen atom. The halogen atom \(X\) is replaced by a nucleophile. Depending on the kinetics and mode of bond breaking, the mechanism can be either SN1 or SN2 reaction. The rate of SN1 reaction is governed by the stability of carbocation and in SN2 reaction, the rate of reaction is governed by steric factor. Chirality is the main factor in both SN1and SN2. In SN1 reaction, the chirality of alkyl halide is accompanied by racemization of the product, while in SN2 reaction, the product is characterized by inversion of configuration. The structure of alkyl halide and the nature of the solvent also governs the mechanism of the substitution.
What is chiral carbon ?CUET 2025 Easy - Which of the following is not an essential amino acid ?CUET 2025 Medium
- Solute - Solvent combination for a solution of camphor in nitrogen gas.CUET 2023 Hard
- Which of the following is not the characteristics of enzymes ?CUET 2023 Medium
- Which among the following shows positive deviation from Raoult's law?CUET 2025 Hard
More PYQs from CUET
- The ratio of the electric field (E) and the magnetic field (B) associated with a plane electromagnetic wave is equal toCUET 2025 Medium
- The remainder, when \(5^{60}\) is divided by 7 , is :CUET 2025 Medium
- Arrange the given organisms involved in a food chain in correct sequence ?
(A) Fish
(B) Phytoplankton
(C) Man
(D) Zooplankton
Choose the correct answer from the options given below:CUET 2025 Hard - Osmotic pressure of 0.02 M urea solution at \(27^{\circ} C\), is (given \(R=0.0821 atm L mol ^{-1} K^{-1}\) )CUET 2023 Hard
- Transmission of HIV-Infection occurs by-
(A). Using infected needles by the health staff or by drug abusers
(B). Transfusion of contaminated blood and blood product
(C). Sexual contact with infected person
(D). Sharing food and sanitation facilities
Choose the correct answer from the options given below:CUET 2023 Hard - A company has been producing steel tubes of mean inner diameter 2 cm.
A sample of 10 tubes gives a mean inner diameter of 2.01 cm and a variance of \(0.0004 cm^2\).
The value of the test statistic is :CUET 2025 Medium