Question

3 weird / easy (maybe) questions, but i still don't get them

Answer 1

heeeelp plz T_T
@emcrazy14 @Kainui @aaronq @chmvijay @thushananth01 @shreehari499 guysss help me pleaseee!!

Answer 2

@Somy for Question Number 35 you must figure out the 3rd product first

Answer 3

Reaction1 is ClO-
Reaction 2 is 5Cl-
Reaction 3 is HNO2

Answer 4

Like in 1, see the oxidation state of Cl on reactant side is 0 in Cl2.

Answer 5

here for disproportionation

Answer 6

but it turns +1 in ClO-

Answer 7

wait i get 1 and 2, but 3 how did u know that the last one will be HNO2?

Answer 8

Balance the equation see the amount of N and H and O on both side of the equation

Answer 9

owhhhhhhhhh

Answer 10

yea and now you see the change in charge you will notice Oxidation and reduction is happening at the same time in the same reaction for all the 1,2 and 3 reactions :)

Answer 11

@Kainui thank youuu! :DD

Answer 12

okay, then can u tell me one thing, disproportionation is basically oxidation as well as reduction of the same element in product side? @KL-RC @Kainui

Answer 13

Yup

Answer 14

ok hurry to skype =_=

Answer 15

lol kkk :P

Answer 16

c'mon next question then?

Answer 17

question 40?

Answer 18

whichever u get

Answer 19

Ok I think I know why it's 1 for Q 40
It's because Halogenalkane are used as flame retardants

Answer 20

see pg 235 of your book :P

Answer 21

yeah but why? because of which property?

Answer 22

oh ok wait

Answer 23

There is a part of the passage in pg 236 that says
"The strength of the C-F bond means that it can be used as high temperatures"

Answer 24

If you read the usage of halogenalkanes in your book you will see that option 2 and 3 does not makes sense

Answer 25

Halogenoalkanes are not very reactive and burn less readily because there are fewer C-H bonds.

Answer 26

yes!! :D @emcrazy14

Answer 27

For the 3rd question, you must first remember that in a hydrogen (H) atom, there is only one proton and one electron. There are no neutrons.
So in OH-, there are a total of 8+1= 9 protons;
8+1+1=10 electrons (The extra 1 is due to the -ve charge which means it has gained an electron)
And, finally just 8 neutrons of the O atom.

Answer 28

In the deuterium (D) atom, there is one proton, one electron and one neutron. So you can work out the total number of protons, electrons and neutrons for each of the other species in a similar way.

Answer 29

yea in that case A is absolutely out of the option because nothing is more than the other value

Answer 30

owkkaaay

Answer 31

thank you @emcrazy14
:)

Answer 32

yw. (:

Answer 33

thnx @emcrazy14 :)