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An organic halide c2h4cl2 gives an unsaturated hydrocarbon on treatment with alcoholic KOH but ethanol on reac with aq KOH the dihalide is??

Mohammed Inamul 9th Dec, 2018

Aqueous KOHKOH is alkaline in nature i.e. it dissociates to produce a hydroxide ion. These hydroxide ions act as a strong nucleophile and replace the halogen atom in an alkyl halide.

RCl+KOH(aq)⟶ROH+KClRCl+KOH(aq)⟶ROH+KCl

This results in the formation of alcohol molecules and the reaction is known as nucleophilic substitution reaction.

Alcoholic,

154 Views

can we appear in cpt between class 12

Sunil Su. 8th Dec, 2018

Hello guarav,

No you cannot appear in cpt between class 12 because eligibilty to take cpt is candidates must have passed 10+2 exam from any national state /central board.

After your 12 is finished,you can appear for cpt ,then based on your score you will be selected based on cutoff

2696 Views

How to join in NSG after 12th ?

UTKARSH DUBEY 8th Dec, 2018

No one can join NSG after class 12.
To join NSG one must do graduation .NSG require highly motivated individual.To join NSG a person should be a firstly in a defense ,police,crpf,BSF means in paramilitary.One whoes performance is good in service can apply for this with help of their commanding

68 Views

How to become a black cats after 12th

Sunil Su. 8th Dec, 2018

Hello vikram,

To be recruited as a black cat commando,you will have to apply yourself in NSG recruitment 

1.*NDA exam(National defence academy) is the better option for you .

2.after finishing exam,a medical test will be there which includes a)visual standards( better eye b).body standards(over weight/under weight) c) height (157)km

47 Views

What type of question will be asked in board

Naman Modi 8th Dec, 2018

Hello apeksha. 

I would suggest you to go through previous year papers and some model textbooks like Golden to get a sound idea. Also mention your board and subject so I could help you more 

Thank You

194 Views

Iam 12th class student my biggest dream is to study bsc chemistry in cusat how can I prepare this??

Sunil Su. 8th Dec, 2018
Hello fathima,
To get well thoroughly prepared in bsc chemistry for CUSAT ,the following key points should be followed , they are
1. The major topics which has the maximum weightage in chemistry are a)environmental chemistry b)redox reactions c)periodicity and properties d)chemical bonds and molecular structure
Be thorough with the
96 Views

8.8 cgpa in 10 th, 79% in 12th , 52% in bsc maths, which engineering cs college should i focus

Naman Modi 8th Dec, 2018

Hello. 

For doing engineering, I will suggest you to apply for some local or state government colleges. You will need to appear for JEE and clear it..

If you specifically are focussing on CS, you will have to prepare harder as the cutoff for CS branches go very high.  

I

638 Views

How percent need for jee main in class 12th in jac board

Shivam Gautam 8th Dec, 2018
Hello Dear

Inorder to be in the NIT / IIT /IIIT / CFTI or State funded technical institute you need to have the minimum score of atleast 75% in Class 12th if you are from the General Category student and for the other categories students it may get vary  whether
57 Views

Human large intestine help in the removal of....(a) urea (b) heavy metals (c)cal. & iron ions (d) lactic acid

Naman Modi 8th Dec, 2018

Hello Mehak.

Large intestime mainly acts as water absorber. Along with water it also helps to absorb minerals like sodium, chloride, calcium and iron

So answer will be (c)

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