Match List-I with List-II

Choose the most appropriate match:

Statement-I : Hyperconjugation is a permanent effect.
Statement-II : Hyperconjugation in ethyl cation

Hard

(CH_{3} - CH_{2}^{+})

involves the overlapping of

C_{sp^{2}} - H_{1 s}

bond with empty 2p-orbital of other carbon.
Choose the correct option:

Both statement I and statement II are true
Statement I is incorrect but statement II is true
Statement I is correct but statement II is false
Both statement I and statement II are false

Topic:

Chemical Bonding and Molecular Structure

Exam:

JEE Mains 2021 July 27 Shift 2

View solution

The Azimuthal quantum number for the valence electrons

Ga^{+}

ion is.........
(Atomic number of

Ga = 31

)

Topic:

Structure of Atom

Exam:

JEE Mains 2021 July 20 Shift 1

View 5 solutions

A ball weighing 10 g is moving with a velocity of 90

m s^{- 1}

. If the uncertainty in its velocity is 5 %, then the uncertainty in its position is __________

\times 1 0^{- 33} m

. (Rounded off to the nearest integer)
[Given :

h = 6.63 \times 1 0^{- 34} Js

]

Topic:

Structure of Atom

Exam:

JEE Mains 2021 Feb 26 Shift 2

View 3 solutions

Among the following, number of metal/s which can be used as electrodes in the photoelectric cell is ______. (Integer answer)
(A) Li
(B) Na
(C) Rb
(D) Cs

Topic:

The s-Block Elements

Exam:

JEE Mains 2021 Feb 25 Shift 2

View solution

Practice questions from Hydrocarbons in the same exam

The compound with highest boiling point is

$n$ -heptane
2, 2- dimethyl pentane
2-methyl hexane
iso-heptane

Topic:

Hydrocarbons

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2002

View 2 solutions

Which one of the following has the minimum boiling point?

Medium

$n$ -butane
1-butyne
1-butene
Isobutene

Topic:

Hydrocarbons

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2004

View 2 solutions

Increasing order of stability among the three main conformations (i.e., Eclipse, Anti, Gauche) of 2-fluoroethanol is

Medium

Eclipse, Gauche, Anti
Gauche, Eclipse, Anti
Eclipse, Anti, Gauche
Anti, Gauche, Eclipse

Topic:

Hydrocarbons

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2006

View 4 solutions

Acetylene does not react with

$Na$
ammoniacal $AgNO_{3}$
$HCl$
$NaOH$

Topic:

Hydrocarbons

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2002

View 2 solutions

Practice more questions from Hydrocarbons

In an electrophilic substitution reaction of nitrobenzene, the presence of nitro group...........

deactivates the ring by inductive effect
activates the ring by inductive effect
decreases the charge density at ortho and para position of the ring relative to meta position by resonance
increases the charge density at meta position relative to the ortho and para positions of the ring by resonance

Topic:

Hydrocarbons

View solution

How many bond cleavages are required to convert cubane into non-cyclic skeleton?

Hard

Topic:

Hydrocarbons

Book:

Advanced Problems in Organic Chemistry for JEE (M.S. Chouhan)

View 3 solutions

Which one of the following has the smallest heat of combustion?

Hard

Topic:

Hydrocarbons

Book:

Advanced Problems in Organic Chemistry for JEE (M.S. Chouhan)

View 3 solutions

The alkane that gives only one monochloro product on chlorination with

Medium

Cl_{2}

in presence of diffused sunlight is:

2,2 -dimethylbutane
Neopentane
$n$ -pentane
Isopentane

Topic:

Hydrocarbons

View 29 solutions

Practice questions on similar concepts asked by Filo students

Q.1 Calculate the energy required to convert all the atoms of magnesium to magnesium ions present in 24 mg of magnesium vapours? First and second ionization enthalpies of Mg are

737.76

and

1450.73 KJ

mol: respectively.

Q.2 Calculate the energy in joules required to convert all atoms of sodium to sodium ions present in $23 mg$ of sodium vapours? lonization enthalpy of sodium is $495 KJ mol^{- 1}$ (Atomic mass of $Na = 23$ ).
Q.3 The ionization potential of hydrogen is $13.6 eV$ . Calculate the energy in $KJ$ required to produce $0.1 mole$ of $H^{*}$ ions. (Given, $1 eV = 96.49 KJ mol^{- 1}$ ).
Q.4 The first and second ionization potentials of helium atoms are $24.58 eV$ and $54.4 eV$ respectively. Calculate the energy in $KJ$ required to produce 1 mole of $He^{2 +}$ ions?
Q.5 The $Δ_{j} H_{1}$ and $Δ_{j} H_{2}$ of $Mg (g)$ are 740 and $1450 KJ mol^{- 1}$ . Calculate the percentage of $Mg^{*} (g)$ and $Mg^{2 *} (g)$ if $1 g$ of $Mg (g)$ absorbs $50 KJ$ of energy.

Topic:

Chemical Bonding

View solution

is :- In the reaction water behaves (1) Acid (3) Neutral

_{1}^{4} O^{O}

The conjugated base of

(CH_{3})_{2} NH_{2}

Base
Both acid \& Base

Topic:

Equilibrium

View solution

What are the effects of radiation on living organisms?

Topic:

Chemistry

View solution