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Chemistry : Recent Questions and Answers (Page 10)

Find answers to your questions about Chemistry or help others by answering their Chemistry questions.

Why is Thorium (At. no. 90) an f-block element at all?

Being an exception of the Aufbau principle, Thorium has an electronic configuration of $ce{[Rn]}mathrm{7s^25f^06d^2}$ instead of the expected $ce{[Rn]}mathrm{7s^2 5f^2 6d^0}$. Two other elements, Lanthanum and Actinium, also...

Asked on 10/05/2021 by user82401

1 answer

Reactivity of different alcohols with NaNH2 and CH3I

Identify the final product (B) in the following reaction: I'm not sure how $ce{NaNH2}$ and $ce{CH3I}$ will react with the different types...

Asked on 10/05/2021

1 answer

Ortho-para directing and meta directing groups: Activating or deactivating the aromatic ring?

Determine the reactivity of the above compounds (activating or deactivating; ortho-para or meta directing). Explain your answers. You may use...

Asked on 10/05/2021

1 answer

R/S configuration of bridging carbon in bicyclic system

I am trying to figure out the R and S configuration of bridging carbons in bicyclic systems. In the image, there are two bicyclic systems and depending on the position...

Asked on 10/05/2021 by QuestionCookie

1 answer

Why HBr has stronger attraction between molecules than CH3NH2?

Which of the following compounds exhibits dipole-dipole forces as its strongest attraction between molecules? a) $ce{CO2}$b) $ce{CH3NH2}$c) $ce{Kr}$d) $ce{H2}$e) $ce{HBr}$From what...

Asked on 10/05/2021 by Molly_K

1 answer

How does C−Br bond obtain energy through solvation?

I came across a question related to SN1 mechanism. In an example of SN1 reaction, i.e. hydrolysis of tert-butyl bromide to form tert-butyl alcohol, the following was given in NCERT...

Asked on 10/05/2021 by RaMathuzen

0 answer

Conductometric titrations: dilution effect

Since the conductivity of a solution changes linearly with the electrolyte concentration, during a conductometric titration the volume increases with each addition of the titrant aliquot. For this reason, each...

Asked on 10/05/2021

1 answer

Steric effect of t-butyl group on SN1 on a cyclohexane ring

This is a question from GRB Kota Question Bank Organic Chemistry, Chapter 3, Reasoning type, Q. 4:Assertion: trans-1-t-butyl-4-chlorocyclohexane is less reactive than cis-1-t-butyl-4-chlorocyclohexane towards an SN1 reaction....

Asked on 10/05/2021 by Safdar Faisal

1 answer

Calculation of pH in acid base reaction

This problem(from ionic equiibrium) states:We are given $pu{40 mL}$ of $pu{0.1 M}$ $ce{HCl}$ and $pu{10 mL}$ of $pu{0.45 M}$ $ce{NaOH}$ in two separate beakers....

Asked on 10/05/2021 by It's probable

2 answer

Role of intermediate in determining the exothermic or endothermic nature of reaction

I was given a question to answer:Which of the following reactions is “not” exothermic?$ce{CH3-Cl + CH3-CH3 -> CH4 + CH3-CH2-Cl}$$ce{CH3-Cl + (CH3)3-CH -> CH4 + (CH3)3C-Cl}$$ce{CH3-Cl +...

Asked on 10/05/2021 by Shreyansh

2 answer

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