The products A and B formed in the following reaction scheme are respectively
The Correct Option is B
Solution and Explanation
To analyze the reaction sequence, we need to look at the transformations taking place in each step.
First Reaction (A): The reaction of benzene C6H6 with concentrated nitric acid HNO3 and sulfuric acid H2SO4 leads to the nitration of benzene. The product formed is nitrobenzene:
A = C6H5NO2 (Nitrobenzene).
Second Reaction (B): The nitrobenzene then undergoes reduction with tin Sn in hydrochloric acid HCl, which reduces the nitro group to an amino group. The product formed is aniline:
B = C6H5NH2 (Aniline).
Thus, the correct identification of products A and B leads to: A = C6H5NO2, B = C6H5NH2.
Top Questions on Chemical Reactions
- Match List-I with the List-IIChoose the correct answer from the options given below:
List-I
ReactionList-II
Type of redox reaction(A) N2(g) + O2(g) → 2NO(g) (I) Decomposition (B) 2Pb (NO3)2(s)
→ 2PbO(s) + 4NO2(g) + O2(g)(II) Displacement (C) 2Na(s) + 2H2O(l)
→ 2NaOH(aq) + H2(g)(III) Disproportionation (D) 2NO2(g) + 2OH-(aq)
→ NO2-(aq) + NO3-(aq) + H2O(l)(IV) Combination - JEE Main - 2024
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- Identify the product A in the following reaction.
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Consider the above chemical reaction. Product "A" is:- JEE Main - 2024
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- The major products formed:
A and B respectively are:- JEE Main - 2024
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- Consider the following reaction: \( \text{MnO}_2 + \text{KOH} + \text{O}_2 \rightarrow \text{A} + \text{H}_2\text{O} \). Product ‘A’ in neutral or acidic medium disproportionates to give products ‘B’ and ‘C’ along with water. The sum of spin-only magnetic moment values of B and C is _________ BM (nearest integer).
(Given atomic number of Mn is 25)- JEE Main - 2024
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Questions Asked in JEE Main exam
- Let \[\vec{a} = \hat{i} + \hat{j} + \hat{k}, \quad \vec{b} = -\hat{i} - 8\hat{j} + 2\hat{k}, \quad \text{and} \quad \vec{c} = 4\hat{i} + c_2\hat{j} + c_3\hat{k} \]be three vectors such that \[\vec{b} \times \vec{a} = \vec{c} \times \vec{a}.\]If the angle between the vector $\vec{c}$ and the vector $3\hat{i} + 4\hat{j} + \hat{k}$ is $\theta$, then the greatest integer less than or equal to $\tan^2 \theta$ is:
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- If each term of a geometric progression \( a_1, a_2, a_3, \dots \) with \( a_1 = \frac{1}{8} \) and \( a_2 \neq a_1 \), is the arithmetic mean of the next two terms and \( S_n = a_1 + a_2 + \dots + a_n \), then \( S_{20} - S_{18} \) is equal to
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A body of mass 1000 kg is moving horizontally with a velocity of 6 m/s. If 200 kg extra mass is added, the final velocity (in m/s) is:
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- $\textbf{Choose the correct statements about the hydrides of group 15 elements.}$
A. The stability of the hydrides decreases in the order \(\text{NH}_3 > \text{PH}_3 > \text{AsH}_3 > \text{SbH}_3 > \text{BiH}_3\)
B. The reducing ability of the hydrides increases in the order \(\text{NH}_3 < \text{PH}_3 < \text{AsH}_3 < \text{SbH}_3 < \text{BiH}_3\)
C. Among the hydrides, \(\text{NH}_3\) is a strong reducing agent while \(\text{BiH}_3\) is a mild reducing agent.
D. The basicity of the hydrides increases in the order \(\text{NH}_3 < \text{PH}_3 < \text{AsH}_3 < \text{SbH}_3 < \text{BiH}_3\)
Choose the most appropriate from the option given below:- JEE Main - 2024
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Concepts Used:
Chemical Coordination and Integration
The chemical coordination and integration of all physiological functions in the animal body are jointly synchronized by the neural and endocrine systems. The control and coordination of body functions are executed by the endocrine glands. They are ductless glands that secrete severel hormones to control and coordinate body functions.
Human Endocrine System:
The human body has several endocrine glands located in different parts. They cover the pituitary gland, thymus, thyroid gland, pineal gland, parathyroid, pancreas (dual gland), adrenal gland, and gonads (testes and ovaries). The liver, kidney, heart, and gastrointestinal tract also produce hormones in small traces to harmonize the functioning of these organs.
The Hypothalamus comprises groups of secretory cells called nuclei which secrets various hormones. These hormones released by the hypothalamus are important in regulating the synthesis and secretion of pituitary hormones.
Functions of Endocrine Glands:
- Pituitary Gland
- Pineal Gland
- Thyroid Gland
- Parathyroid Gland
- Thymus
- Adrenal Gland
- Pancreas
- Testes
- Ovary
- Hormones of Kidney, Heart, and Gastrointestinal Tract
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