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Rutuja Choudhary

EduRev Chemistry

Rutuja Choudhary
EduRev Chemistry
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Discussed Questions
Rutuja Choudhary upvoted   •  3 weeks ago

A body P(temperature Tp) has twice the mass and twice the specific heat compared to that of the body Q (temperature TQ). If the bodies are supplied equal amount of heat, the relationship between their resulting temperature changes (Δ Tp and Δ TQ) will be
  • a)
    ΔTp =4 ΔTQ
  • b)
    ΔTp =2ΔTQ
  • c)
    ΔTQ = 2ΔTp
  • d)
    ΔTQ = 4ΔTp
Correct answer is option 'D'. Can you explain this answer?

Pie Academy answered

Rutuja Choudhary upvoted   •  Feb 13, 2025

A carboxylic acid can best be converted into acid chloride by using:
  • a)
    PCl5
  • b)
    SOCl2
  • c)
    HCl
  • d)
    ClCOCOCl 
Correct answer is option 'D'. Can you explain this answer?

Veda Institute answered
Use of SOCl2 and CICOCOCI forms gaseous by products which can be easily removed, giving better yield of RCOCI. Further, oxalyl chIoride is particularly easy to use becasue any excess of it can be easily evaporated due to its low b.p. (62∘C)

Rutuja Choudhary upvoted   •  Feb 02, 2025

Which of the following is most basic?
  • a)
  • b)
  • c)
  • d)
Correct answer is option 'C'. Can you explain this answer?

Edurev.iitjam answered
To determine which of the compounds is most basic, we need to analyze the nitrogen atoms in each structure and their availability to donate a lone pair of electrons.
The basicity of nitrogen-containing compounds depends on the availability of the lone pair on nitrogen. Nitrogen atoms in aromatic systems, such as pyridine or quinoline derivatives, have lone pairs that participate in resonance, which can reduce their availability for protonation. Nitrogens that are less involved in resonance and conjugation will tend to be more basic.
Analyzing each structure:
  1. Compound 1: This structure has nitrogen atoms in an aromatic system similar to quinoline. The lone pairs on these nitrogen atoms are somewhat delocalized due to resonance, reducing their basicity.
  2. Compound 2: This structure is analogous to acridine, which has a nitrogen in an aromatic system. The lone pair is part of the conjugated system, reducing its basicity.
  3. Compound 3: This structure has a nitrogen in a pyridine-like environment (quinazoline), but its lone pair is still somewhat available, making it relatively more basic compared to compounds where nitrogen is more deeply involved in conjugation.
  4. Compound 4: This structure is a pyrimidine derivative. The nitrogen atoms are part of an aromatic system where their lone pairs are involved in resonance. Therefore, they are less basic.
Conclusion:
Among the given compounds, Compound 3 (quinazoline derivative) is the most basic because its nitrogen atoms are less involved in resonance compared to the other structures, making the lone pair more available for protonation.
The correct answer is:
Option 3.

Rutuja Choudhary upvoted   •  Feb 01, 2025

Among the complexes:
(I) K4[Fe(CN)6],
(II) K3[Co(CN)6],
(III) K4[Mn(CN)6], Jahn – Teller  distortion is expected in.
  • a)
    I, II, and III
  • b)
    III only
  • c)
    I and II
  • d)
    I and III
Correct answer is option 'B'. Can you explain this answer?

Edurev.iitjam answered
Jahn Teller Distortion in Complexes
  • Jahn Teller distortion is a phenomenon that occurs in octahedral complexes with degenerate electronic states. It is caused by the interaction between the electrons in the degenerate orbitals and the molecular vibrations, leading to a distortion in the complex.
Complexes with Jahn Teller Distortion
  • Among the given complexes, K4[Fe(CN)6], K3[Co(CN)6], and K4[Mn(CN)6], Jahn Teller distortion is expected only in K4[Mn(CN)6].
  • K4[Fe(CN)6] and K3[Co(CN)6] have d6 electronic configuration which is not degenerate and hence do not show Jahn Teller distortion. On the other hand, K4[Mn(CN)6] has d5 electronic configuration which is degenerate. Hence, it shows Jahn Teller distortion.
In conclusion, Jahn Teller distortion is a phenomenon that occurs only in octahedral complexes with degenerate electronic states. Among the given complexes, K4[Mn(CN)6] is the only one with degenerate electronic states and hence shows Jahn Teller distortion.

Rutuja Choudhary upvoted   •  Jan 30, 2025

For the reaction,   the rate of formation of X2 is:
  • a)
    3 (–d[X3]/dt)
  • b)
  • c)
  • d)
Correct answer is option 'D'. Can you explain this answer?

Edurev.iitjam answered

Kinetic theory of an ideal gas is based upon the following assumption(s)
  • a)
    Gases are made of molecules with negligible volume
  • b)
    The gaseous molecules do not possess kinetic energy
  • c)
    The molecules are in constant random motion
  • d)
    Intermolecular forces of attraction are negligible
Correct answer is option 'A,C,D'. Can you explain this answer?

Rutuja Choudhary answered  •  Jan 16, 2025
Understanding the Kinetic Theory of Ideal Gases
The kinetic theory of gases provides a molecular-level interpretation of gas behavior, focusing on several fundamental assumptions. Here’s a breakdown of the relevant assumptions:
Assumption A: Negligible Volume of Gas Molecules
- Gases are composed of a vast number of molecules.
- The volume of individual gas molecu... more

In metal- carbonyl complexes, the p- back bonding is
  • a)
    pπ – dπ type
  • b)
    dπ – dπ type
  • c)
    dπ – π* type
  • d)
    dπ – σ* type
Correct answer is option 'C'. Can you explain this answer?

Rutuja Choudhary answered  •  Jan 16, 2025
Understanding p-Back Bonding in Metal-Carbonyl Complexes
Metal-carbonyl complexes are significant in coordination chemistry, primarily due to their unique electronic properties. One important aspect of these properties is the phenomenon known as p-back bonding.
What is p-Back Bonding?
- P-back bonding refers to the electron donation from filled metal d-orbitals to empt... more

10 mL of a blood sample (containing Calcium oxalate) is dissolved in an acid. It required 20 mL of 0.001 M KMnO4 (which oxidizes oxalate to CO2). Hence, Ca2+ ion in 10 mL blood is:             
  • a)
    0.200 g                        
  • b)
    0.002 g                           
  • c)
    0.02 g                       
  • d)
    2.00 g
Correct answer is option 'B'. Can you explain this answer?

Rutuja Choudhary answered  •  Sep 23, 2024
Overview of the Reaction
In this experiment, oxalate ions (C2O4^2-) from the blood sample are oxidized to carbon dioxide (CO2) by potassium permanganate (KMnO4) in an acidic medium.
Calculation Steps
1. Determine Moles of KMnO4 Used:
- The concentration of KMnO4 is 0.001 M.
- Volume of KMnO4 used = 20 mL = 0.020 L.
- Moles of KMnO4 = Concentra... more

The CORRECT statement(s) about carbene is(are)
  • a)
    Carbene is a neutral species
  • b)
    Carbene is an intermediate in the Curtius rearrangement
  • c)
    Carbene can insert into both s and π-bonds
  • d)
    Carbene is generated from amines on reaction with nitrous acid
Correct answer is option 'A,C'. Can you explain this answer?

Rutuja Choudhary answered  •  Sep 23, 2024
Overview of Carbene
Carbenes are reactive intermediates in organic chemistry characterized by a carbon atom with two valence electrons, making them neutral species. They play crucial roles in various chemical reactions, including insertions and rearrangements.
Correct Statements Explained
1. Carbene is a neutral species
- Carbenes are indeed neutral entitie... more

What will be the value.of mole fraction of the solute in 1 molal aqueous solution?

Rutuja Choudhary answered  •  Aug 14, 2024
In a 1 molal aqueous solution, the mole fraction of the solute can be calculated as follows:
- Definition of Molality:
Molality (m) is defined as the number of moles of solute dissolved in 1 kg of solvent. It is expressed in moles per kilogram.
- Calculation of Molality:
For a 1 molal solution, the molality is 1 mol/kg. This means that there is 1 mole of solute di... more

Sncl4 is relatively more stable than sncl2 but reverse is true for pb ...explain?

Rutuja Choudhary answered  •  Jul 13, 2024
Stability of SnCl4 and SnCl2 compared to PbCl4 and PbCl2
SnCl4 is relatively more stable than SnCl2, while the reverse is true for PbCl4 and PbCl2. This difference in stability can be explained by the electronic configurations and sizes of the elements involved.

Electronic configurations
- Tin (Sn) has a valence electron configuration of [Kr] 5s2 4d10 5p2.
-... more

Lewis acidic strength of group 13?

Rutuja Choudhary answered  •  Apr 22, 2024
Lewis Acidic Strength of Group 13 Elements
Group 13 elements consist of boron, aluminum, gallium, indium, and thallium. These elements exhibit Lewis acidic behavior due to their ability to accept electron pairs. The Lewis acidic strength of Group 13 elements can be explained based on their atomic and electronic structures.

Boron
- Boron is the least metallic elem... more

?

Rutuja Choudhary answered  •  Apr 22, 2024
- Rate of Change of Intermediate (I) in Series Reactions
The rate of change of an intermediate (I) in a series reaction can be determined using the steady-state approximation. This approximation assumes that the concentration of the intermediate remains constant over a short period of time.
- Steady State Approximation
In a series reaction, the rate of formation of the intermediate ... more

Explain whether chemical potential is an extensive property?

Rutuja Choudhary answered  •  Feb 28, 2024




Chemical Potential as an Extensive Property

Chemical potential is a fundamental concept in thermodynamics that describes how the energy of a system changes as a result of adding or removing particles. It is a measure of the tendency of a substance to move or react and is related to the change in Gibbs free energy of a system.

Exte... more

An extensive property is a physical quantity that depends on the size or extent of a system. It scales linearly with the size of the system, meaning that if you double the size of the system, the value of the property will also double.

Chemical Potential as an Intensive Property

Chemical potential is actually an intensive property, meaning it does not depend on the size of the system. Intensive properties are independent of the amount of substance present and are useful for describing the behavior of a system on a microscopic scale.

Understanding Chemical Potential

While chemical potential is not an extensive property, it is related to the number of particles in a system. It describes how the energy of a system changes as particles are added or removed, and is an important factor in predicting the behavior of chemical reactions and phase transitions.

Conclusion

In summary, chemical potential is an intensive property that describes the energy changes in a system as particles are added or removed. Although it is not an extensive property, it plays a crucial role in understanding the behavior of chemical systems.


Rutuja Choudhary asked   •  Feb 15, 2024

The number of unpaired electrons in the complex ion [Co(NH3)6]3+ are:
  • a)
    zero
  • b)
    one
  • c)
    Two
  • d)
    Three
Correct answer is option 'A'. Can you explain this answer?

Ankita Sarkar answered
Understanding the Complex Ion
The complex ion [Co(NH3)6]3+ consists of a cobalt ion coordinated with six ammonia ligands. To determine the number of unpaired electrons, we need to analyze the oxidation state and electronic configuration of cobalt in this complex.
Oxidation State of Cobalt
- Cobalt (Co) typically has an oxidation state of +3 in the complex.
- There... more

In a Drosophila, three recessive mutations can lead to white eyes, yellow body and vestigial wings.  A heterozygous fly is crossed with a fly recessive for all these mutations. Using the following data, the distance between the gene for wing shape and eye color would be ________cM. (Answer upto one point after decimal)
    Correct answer is between '17.1,17.5'. Can you explain this answer?

    Rutuja Choudhary answered  •  Jan 04, 2024
    To determine the distance between the gene for wing shape and eye color in Drosophila, we can use the data from the cross between a heterozygous fly (XWXwY) and a fly recessive for all three mutations (XwXwY). Here, X represents the wild-type allele, w represents the recessive allele for white eyes, and Y represents the wild-type allele for body color.

    First, let's analyze the phenotype    ... more
    Rutuja Choudhary asked   •  Sep 29, 2023

    In amperometry, what property of the analyte is typically measured and related to its concentration?
    • a)
      Mass
    • b)
      Density
    • c)
      Potential
    • d)
      Current
    Correct answer is option 'D'. Can you explain this answer?

    Aditi Basak answered

    Current

    Amperometry is a technique used in analytical chemistry to measure the concentration of an analyte. In this method, the property of the analyte that is typically measured and related to its concentration is the current.

    Working Principle

    In amperometry, the analyte undergoes an electrochemical reaction at an electrode surface. The curren    ... more

    Rutuja Choudhary asked   •  Aug 17, 2023

    Can I get the details of the process to download the IIT JAM Chemistry answer key from the official website?

    Shivani Mehta answered
    Process to Download IIT JAM Chemistry Answer Key from the Official Website

    Step 1: Visit the Official Website
    To download the IIT JAM Chemistry answer key, you need to visit the official website of IIT JAM. The official website is the most reliable source to obtain the answer key.

    Step 2: Navigate to the Answer Key Section
    Once you are on the of    ... more

    Rutuja Choudhary asked   •  Aug 17, 2023

    What are the common mistakes students make while preparing for IIT JAM Chemistry, and how can I avoid them?

    Shivani Mehta answered
    Common Mistakes Students Make While Preparing for IIT JAM Chemistry



    • Lack of proper planning: Many students underestimate the syllabus and complexity of the IIT JAM Chemistry exam. They often fail to plan their preparation strategy effectively, leading to incomplete coverage of topics and inadequate time management.

    • Ignoring the basics: Chemistry is a subject that requires a strong foundation. Students often neglect the basics and focus only on solving advanced problems. This approach hampers their understanding of fundamental concepts, making it difficult for them to tackle complex questions.

    • Inadequate practice: Solving a sufficient number of practice questions is crucial for scoring well in IIT JAM Chemistry. However, some students rely solely on theoretical knowledge and neglect regular practice. This results in poor time management during the exam and difficulty in applying concepts to solve problems.

    • Overdependence on coaching material: While coaching material can be helpful, relying solely on it without referring to standard textbooks and other resources can be a mistake. It may limit the understanding of concepts from different perspectives and restrict exposure to a wide range of questions.

    • Procrastination: Many students tend to procrastinate and delay their study schedule. This leads to a last-minute rush, causing stress and inadequate revision. It is important to maintain a disciplined study routine and allocate sufficient time for revision.

    ... more

    Rutuja Choudhary asked   •  Aug 14, 2023

    Are the cutoff marks different for admission to M.Sc. and Ph.D. programs through IIT JAM Chemistry?

    Sinjini Singh answered
    Introduction:
    The IIT JAM (Joint Admission Test for M.Sc.) is a national-level entrance exam conducted by the Indian Institutes of Technology (IITs) for admission to various postgraduate programs in science and technology. The cutoff marks for admission to M.Sc. and Ph.D. programs through IIT JAM Chemistry may vary based on several factors.

    Factors affecting cutoff marks:    ... more
    1. Number of available seats: The cutoff marks are influenced by the number of seats available for a particular program. If the number of seats is limited, the cutoff marks tend to be higher.

    2. Difficulty level of the exam: The difficulty level of the exam can also impact the cutoff marks. If the exam is relatively more challenging, the cutoff marks may be lower as compared to an easier exam.

    3. Number of applicants: The total number of applicants for a specific program can affect the cutoff marks. If the competition is high and there are a large number of applicants, the cutoff marks may be higher.

    4. Reservation policy: The reservation policy followed by the institutes also plays a role in determining the cutoff marks. The cutoff marks may vary for different categories such as General, OBC, SC, ST, etc.

    Cutoff marks for M.Sc. program:
    The cutoff marks for admission to M.Sc. programs through IIT JAM Chemistry are generally lower compared to Ph.D. programs. This is because M.Sc. programs usually have a larger number of available seats and a higher intake capacity.

    Cutoff marks for Ph.D. program:
    The cutoff marks for admission to Ph.D. programs through IIT JAM Chemistry are typically higher than for M.Sc. programs. Ph.D. programs generally have a limited number of seats and are highly competitive. The cutoff marks are often influenced by the research interests of the faculty members and the availability of research funding.

    Conclusion:
    In conclusion, the cutoff marks for admission to M.Sc. and Ph.D. programs through IIT JAM Chemistry may differ based on factors such as the number of available seats, difficulty level of the exam, number of applicants, and the reservation policy. Generally, the cutoff marks for Ph.D. programs are higher compared to M.Sc. programs due to the limited number of seats and higher competition.

    Rutuja Choudhary asked a question

    Can I get study materials that provide a detailed explanation and examples for each concept in IIT JAM Chemistry?

    Answer this Question
    Rutuja Choudhary asked   •  Aug 07, 2023

    • a)
      2
    • b)
      1
    • c)
      0
    • d)
      No error
    Correct answer is option 'A'. Can you explain this answer?

    Geetanjali Singh answered
    A

    Rutuja Choudhary asked   •  Aug 02, 2023

    Are there any changes expected in the IIT JAM Chemistry exam pattern in the future?

    Soumya Sharma answered
    Expected Changes in IIT JAM Chemistry Exam Pattern

    The Indian Institute of Technology Joint Admission Test for M.Sc. (IIT JAM) is a national level entrance examination conducted for admission into various postgraduate courses in Science at the IITs and IISc. The exam pattern of IIT JAM Chemistry has remained relatively consistent over the years, but it is important to stay update    ... more

    Rutuja Choudhary asked   •  Dec 08, 2022

    The orbitals formed after hybridization have equal energy.
    • a)
      True
    • b)
      False
    Correct answer is option 'A'. Can you explain this answer?

    Hema answered
    Hybridization: Mixing of atomic orbitals of different energy to get the hybrid orbitals of equivalent energy.

    Rutuja Choudhary asked   •  Dec 04, 2022

    Which of the following noble gases is most soluble in water?
    • a)
      Helium
    • b)
      Radon
    • c)
      Krypton
    • d)
      Neon
    Correct answer is option 'B'. Can you explain this answer?

    Swara Reddy answered
    **Solubility of Noble Gases in Water**

    Noble gases, also known as Group 18 elements, are known for their low reactivity and stability due to their full outer electron shells. These elements include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). Among these noble gases, radon (Rn) is the most soluble in water.

    **Factors Affecting Solubility in Wa    ... more

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