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VITEEE
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Chemistry
List of top Chemistry Questions asked in VITEEE
Consider the water gas equilibrium reaction,
$C ( s )+ H _{2} O ( g ) \rightleftharpoons CO ( g )+ H _{2}( g )$
Which of the following statements is true at equilibrium?
VITEEE - 2015
VITEEE
Chemistry
Equilibrium Constant
Point out incorrect stability order
VITEEE - 2015
VITEEE
Chemistry
Isomerism
The molarity of
$NO_3^-$
in the solution after
$2L$
of
$3M \, AgNO_3$
is mixed with
$3L$
of
$1M \, BaCl_2$
is
VITEEE - 2015
VITEEE
Chemistry
Expressing Concentration of Solutions
The chemical composition of slag formed during the smelting process in the extraction of copper is
VITEEE - 2015
VITEEE
Chemistry
Refining
Caffeine has a molecular weight of
$194\, u$
. If it contains
$28.9\%$
by mass of nitrogen, number of atom of nitrogen in one molecule of caffeine is
VITEEE - 2015
VITEEE
Chemistry
Some basic concepts of chemistry
In benzene, the triple bond consists of
VITEEE - 2015
VITEEE
Chemistry
Properties of benzene
Consider the following changes
$M(s) \longrightarrow M(g)$
$M(g) \longrightarrow M^{2+}(g)+2 e^{-}\ldots$
(1)
$M(g) \longrightarrow M^{+}(g)+e^{-}\ldots$
(2)
$M^{+}(g) \longrightarrow M^{2+}(g)+e^{-} \ldots$
(3)
$M(g) \longrightarrow M^{2+}(g)+2 e^{-}\ldots$
(4) The second ionisation energy of
$M$
could be determined from the energy values associated with
VITEEE - 2015
VITEEE
Chemistry
Enthalpy change
If the ionisation energy and electron affinity of an element are $275$ and $86 \,kcal\, mol^{-1}$ respectively, then the electronegativity of the element on the Mulliken scale is
VITEEE - 2015
VITEEE
Chemistry
Some basic concepts of chemistry
With excess of water, both $P_{2}O_{5}$ and $PCl_{5}$ give
VITEEE - 2015
VITEEE
Chemistry
Group 15 Elements
Which one of the following is a case of negative adsorption?
VITEEE - 2015
VITEEE
Chemistry
Adsorption
A certain metal when irradiated by light
$(r = 3.2 \times 10^{16} Hz)$
emits photoelectrons with twice kinetic energy as did photoelectrons when the same metal is irradiated by light
$(r =2.0 \times 10^{16} Hz)$
. The
$v_0$
of metal is
VITEEE - 2015
VITEEE
Chemistry
Bohr’s Model for Hydrogen Atom
An alloy of copper, silver and gold is found to have copper atom constituting the ccp lattice. If silver atom occupy the edge centres and gold atom is present at body centred, the alloy has a formula
VITEEE - 2015
VITEEE
Chemistry
Unit Cells
Which of the following isomerism is shown by ethyl acetoacetate?
VITEEE - 2014
VITEEE
Chemistry
Isomerism
Which set has different class of compounds?
VITEEE - 2014
VITEEE
Chemistry
Organic Chemistry
The final product obtained in the reaction,
VITEEE - 2014
VITEEE
Chemistry
Organic Chemistry
Among the following the strongest nucleophile is?
VITEEE - 2014
VITEEE
Chemistry
Organic Chemistry
In Langmuir’s model of adsorption of a gas on a solid surface, the rate of dissociation of adsorbed molecules from the surface does not depend on?
VITEEE - 2014
VITEEE
Chemistry
Surface Chemistry
Which of the following compounds cannot be prepared singly by the Wurtz reaction?
VITEEE - 2014
VITEEE
Chemistry
Hydrocarbons
If the elevation in boiling point of a solution of 10 g of solute (mol. wt. = 100) in 100 g of water is \( \Delta T_b \), the ebullioscopic constant of water is?
VITEEE - 2014
VITEEE
Chemistry
Solutions
Which of the following oxides is strongly basic?
VITEEE - 2014
VITEEE
Chemistry
p -Block Elements
How many sigma and pi-bonds are there in the molecule of dicyanoethene (\( \text{CH}_2 \text{CH} \text{CN} \))?
VITEEE - 2014
VITEEE
Chemistry
Chemical bonding and molecular structure
The final product \( C \) in the above reaction is?
VITEEE - 2014
VITEEE
Chemistry
Organic Chemistry
What will be the order of reactivity of the following carbonyl compounds with Grignard’s reagent?
VITEEE - 2014
VITEEE
Chemistry
Aldehydes And Ketones
Which of the following pairs give positive Tollen’s test?
VITEEE - 2014
VITEEE
Chemistry
Aldehydes And Ketones
Which of the following has an ester linkage?
VITEEE - 2014
VITEEE
Chemistry
Organic Chemistry
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