How was papper 9701 / 12 chem MCQ ?

[The Sarcastic Retard]

what about q2?

That was simple It was C till I remember.

 

[awesomaholic101]

You will get A in chemistry?
Too Good.

Yeah, In sha Allah ... but A is not the matter here. Need to get 90+ or atleast 88+

i guess it should be ionic bonding? coz which element has ionic bonding?? All metals have metallic bond and all non-metals covalent bond (Cl2 and all) ... and Van der Waal's force i asumed it should be there in noble gases.

I think even i got B for 39th question

 

[ahmed butt]

That was simple It was C till I remember.

ch2br one

 

[Albert Lianto]

Maybe, but I'm confident with D

Reason why I thought 2 was correct was because the -OH group's position the ring relative to the other -OH group practically FORCES an elimination reaction with only one organic product to be formed.. The other one can't happen (if you know what I mean) xD

 

[ahmed butt]

what about calcium carbide hydrolysed with water what are the product

 

[awesomaholic101]

what about calcium carbide hydrolysed with water what are the product

i got C for that ... formula is CAC2 .. and in products it can't be C2H2 right? so i took C

 

[ahmed butt]

i got C for that ... formula is CAC2 .. and in products it can't be C2H2 right? so i took C

i think its D there is no heating so no oxide can anyone confirm pls

 

[Albert Lianto]

i think its D there is no heating so no oxide can anyone confirm pls

I answered D because I couldn't balance C, can you? xD

 

[ahmed butt]

I answered D because I couldn't balance C, can you? xD

it is D confirmed?

 

[Albert Lianto]

Google s

it is D confirmed?

Google says D at least xD

 

[The Sarcastic Retard]

i got C for that ... formula is CAC2 .. and in products it can't be C2H2 right? so i took C

Yeah. That was option D.

 

[The Sarcastic Retard]

The only confusing was, 1, 39, 40.

 

[The Sarcastic Retard]

What was answer for Felings one...
I chose two carboxylic acids.
I was confused there too xD

 

[ahmed butt]

What was answer for Felings one...
I chose two carboxylic acids.
I was confused there too xD

it was D

 

[The Sarcastic Retard]

it was D

Why??

 

[Albert Lianto]

Why??

Question said that HCO2H can be oxidised by the reagents that oxidise aldehydes, so really, D is the only option with the other pair being an aldehyde..

 

[ahmed butt]

Why??

methanoic acid also react with that oxidise aldehyde it was given in question ,the other compound was an aldehyde

 

[ahmed butt]

what about question of nh4+ was it B or C

 

[Albert Lianto]

what about question of nh4+ was it B or C

C, if I'm not mistaken? NH4NO3, wasn't it, or is it wrong?
How bout the Al and Ba(NO3)2 thing? Was that one B (72 cm3)?

 

[The Sarcastic Retard]

Question said that HCO2H can be oxidised by the reagents that oxidise aldehydes, so really, D is the only option with the other pair being an aldehyde..

How HCOOH is oxidized to aldehyde?