Halogens | Group 7 | Full Topic | Explained | A level Chemistry

Group 7: Halogens.

A level Chemistry - Inorganic Chemistry.

Question Walkthrough Video:

00:00 Introduction
00:42 Physical Properties | Atomic Radius
02:24 Boiling Point Pattern
05:01 Oxidising Ability
06:53 Displacement Reactions
10:16 Making Bleach | Disproportionation
12:44 Chlorine with water | Disproportionation
15:39 Testing for Halide Ions
18:33 Ammonia Solution and AgX(s)
21:33 Reducing Power of Halide Ions
22:44 Reactions with Sulfruic Acid
25:07 Bromide reduction of sulfur
27:34 Iodide Reduction of Sulfur

[umaraleem]

group 7 exam questions really have me in a twist, your video on that was very helpful! thank you, great prep for my mock on thursday.

[MariamNuhu-fcvz]

Another life saving video honestly making me so confident for my year 12 mock resits in 2 weeks, now all thats left are doing past paper questions Thanks sir for everything!!!

[sahib]

Oh my god I was looking for this the other day because I hate how group 7 exam equations are since I struggle to really understand halogens. words cant explain how happy i am that youve posted this THANK YOU!!

[Fall]

a really helpful video on this topic, it helped me a lot when going over my revision for the last time before my yr12 mock

[TeekayOG]

this is some good stuff, really saving me a few days before my exam

[Tharushi_SM]

13:34 stoichiometry of H20 is just 1. Not two here right?

Thank you so much for this. I love how you connect all the parts to one another so it’s in a flow. Thank you again.

[andrewjustin]

Hey there, I'm encountering difficulty with how you predicted what the products will be when NaOH reacted with Cl2 2NaOH + Cl2 --> NaCl + NaClO + H2O; how did you know it would yield sodium hypochlorite. If i were to be predicting on my own, i would simply think NaCl will be there only. Morever reaction like H2SO4 + NaCl --> HCl + NaHSO4. I thought the reaction would be like H2SO4 + 2NaCl --> 2HCl + Na2SO4 Please assist me in this!

[intelblox]

At 9:44 are you doing these reactions in water?

[minnaminnaminnaminna]

Hi sir, i dont fully understand why we acidify the silver nitrate with specifically nitric acid. I wonder if you could explain?

[zafranakram]

That’s sir, fantastic video very helpful ….. I’ll subscribe and watch your video s because you re very good at simplifying complex content for your students (like me) to understand !!

[sparkles]

hello, this was so helpful. btw sir, can i ask a question? so can you explain how to find angles when you are given a molceule such as ethanol or butanol? is there a easier way to find it...pls answer this, i have my exams next month

[marlvrr]

thank you so much, great explanation, very helpful ❤

[engineeringmadeasy]

Which exam board did you follow for A Level videos?

[glo]

23:42 im really confused, why do we get the same products in all three equations here? Why isn't So2 written as a product of the reaction with NaBr

[TrishaLsg]

29:40 why do we add +8 charge on LHS. Where is the -8 so that it cancels out?

[Lilyatpase]

Could please make more video about inorganic chemistry?

[hasaanjunaid]

@24:19 cant the metal halides be (aq)
Or will the reaction not work

[minnaminnaminnaminna]

at 14:01 when you are writing Chlorine and water equations, wouldn't there be one mole of water as opposed to 2?

[hasaanjunaid]

why should the metal halides be solid?
doesnt (aq) work as well

[inyourfacevia]

Why is it postive 2 charge instead of negative at 26:46