CUET · CHEMISTRY · PYQ PAPER 2023
Which statement is/are true for Gabriel phthalimide synthesis?
A. It is used for the preparation of primary and secondary amines
B. It is only used for the preparation of primary amines
C. Aromatic primary amines can not be prepared by this method
D. Only tertiary amines can be prepared
Choose the correct answer from the options given below:
- A A, B only
- B A, C only
- C B, C only
- D D only
Answer & Solution
Correct Answer
(C) B, C only
Step-by-step Solution
Detailed explanation
Statements B and C are true. B. It is only used for the preparation of primary amines. C. Aromatic primary amines can not be prepared by this method. The correct answer is B, C only.
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
- \(2KClO_3 \xrightarrow{653-873K} 2KCl + 3O_2\)
On adding manganese dioxide to the above reaction, the subsequent decomposition takes place at:CUET 2023 Hard - Match List - I with List - II.
Choose the correct answer from the options given below :List - I (lon) List - II (Magnetic Moment (BM)) (A) \(V^{2+}\) (1) 1.73 (A) \(Ni ^{2+}\) (II) 3.87 (C) \(Cu ^{2+}\) (III) 4.90 (D) \(Cr ^{2+}\) (IV) 2.84 CUET 2023 Hard - What is the IUPAC name of Oxalic acid?CUET 2025 Easy
- In the given reaction \(CH_3CH_2OH + HCl \xrightarrow{Anhy ZnCl_2} X \xrightarrow{KCN(alc)} Y \xrightarrow{Na/Alcohol} Z\) \(Y\) and \(Z\) are:CUET 2023 Medium
- "Answer the question on basis of passage given below:
\(G = \frac{\kappa A}{l}\)=k (both \(A\) and \(l\) are unity in their appropriate units in m or cm)
Molar conductivity of a solution at a given concentration is the conductance of the volume \(V\) of solution containing one mole of electrolyte kept between two electrodes with area of cross section \(A\) and distance of unit length (\(l\)). Therefore,
\(\Lambda_m = \frac{\kappa A}{l}\)
Since \(l = 1\) and \(A = V\) (volume containing 1 mole of electrolyte),
\(\Lambda_m = \kappa V\)
If the length \(l\) in the column of an electrolytic cell is halved and its area of cross-section is tripled, then conductance (\(G\)) would become:"CUET 2023 Hard - The correct order of dipole moment of the different methyl halides is :CUET 2023 Medium
More PYQs from CUET
- The area of the region bounded by the parabola \(y^2=8 x\) and the line \(x=2\) is:CUET 2023 Easy
- A woman has given birth to fraternal twin daughters. How many ovum/ova would have been released by the ovary?CUET 2025 Easy
- If 'n' identical resistors, each of value 'R' are first connected in series to a battery of emf 'E' and internal resistance 'R', the current drawn is 'I'. Now if they are connected in parallel, then the current drawn is '5 I'. The value of n isCUET 2023 Easy
- Which of the following represents Ohm's law for a conducting material?CUET 2023 Medium
- Read the passage carefully and answer the given questions.
DNA Fingerprinting
Polymorphism in DNA sequence is the basis of genetic mapping of the human genome as well as of DNA fingerprinting. DNA fingerprinting involves identification of differences in some specific regions in the DNA sequence called repetitive DNA. It works on the principle of polymorphisms in DNA sequences. The repetitive DNA are separated from bulk genomic DNA. The bulk DNA forms a major peak and the other small peaks are referred to as satellite DNA. These repetitive/satellite DNA sequences show a high degree of polymorphisms and form the basis of DNA fingerprinting.
One of the most frequently used techniques in DNA fingerprinting isCUET 2025 Hard - In a Young's double slit experiment, two slits are separated by 3 mm and the screen is placed 1.5 m away. The distance between two consecutive minima for a light of wavelength 420 nm isCUET 2025 Hard