2.NUCLEOPHILIC ADDITION
3. FREE RADICAL MECHANISM REACTION
1.ELIMINATION REACTION
6. nitration of benzen is:
1.freeradical mechanism
2.electro philic addition reaction
3.electrophilic substitution reaction
4.none of these
5. nitration of alkane is
1.free radical mechanism
2.nucleophilic substitution
3.electrophilic addition
4.nucleophilic addition
1.Tth reaction
is called as
2 THE REACTION .
IS WELL KNOWN AS
3. LUCAS REAGENT IS
3. The reaction
HCHO + HCHO ------------------>
50% NaOH
HCOONa + CH3OH
IS CALLED AS
5.
Acetone reacts with sodium cynide gives addition product due to :
6.
The reaction of ethene with hydrogen halide form 1-halo ethane due to:
7
Acetaldehyde reacts with sodium bisulphite gives adduct due to:
* which of the following element could not be classified by havoisier ?
*
According to prout an element does not have atomic weight like
* which of the following pair follows Dobereiner law
Which of the following pair of element occupy peak position in atomic volume curve ?
The properties of boron are similar to --
* write down the iupac name of the element comes after the element having Z = 115
* 1. The periodic which contain all element in gaseous state is the..................... period
2. Group contains all element in gaseous state ...................?
3.Total number of gaseous element ......................................?
4 Total number of liquid element ............................................?
* The screening / sheilding effect can be caculated by this tips-
= [(no. of e- in nth shell - 1)x0.35 + no. of e- in (n-1)x0.85 + no. of e- in (n-2) & all inner shell x 1.0]
* The
value of Cl is
-------
17 Cl . 1s2 ,2s2, 2p6, 3s2,3p5
-----------
------------
n-2
n-1
n
6x0.35+8x0.85+2x1.0
= ?
* The formula for Zeff = atomic no.-
* Zeff of Cl is
* If covalent radii of sodium is 1.73 then metallic radii of sodium
* If the radius of fluorine is 0.93 A then radius of neon will be ---