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Chemistry
List of top Chemistry Questions
Which one of the following nitrates will decompose to give NO₂ on heating?
KCET - 2024
KCET
Chemistry
The S-Block Elements
Gold sol is not a:
KCET - 2024
KCET
Chemistry
Surface Chemistry
In the given sequence of reactions, identify ‘P’, ‘Q’ and ‘S’ respectively:
KCET - 2024
KCET
Chemistry
Haloalkanes and Haloarenes
How many Coulombs are required to oxidise 0.1 mole of H
2
O to oxygen?
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KCET
Chemistry
Redox reactions
Which of the following set of polymers are used as fibre?
(i) Teflon
(ii) Starch
(iii) Terylene
(iv) Orlon
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KCET
Chemistry
Polymers
The biodegradable polymer obtained by polymerisation of Glycine and Aminocaproic acid is:
KCET - 2024
KCET
Chemistry
Polymers
Which of the following crystals has the unit cell such that \( a = b \neq c \) and \( \alpha = \beta = 90^\circ, \gamma = 120^\circ \)?
KCET - 2024
KCET
Chemistry
The solid state
Match the following:
Ions
Properties
I. Zn
2+
i. d
8
configuration
II. Cu
2+
ii. Colourless
III. Ni
2+
iii. µ = 1.73 BM
Codes:
KCET - 2024
KCET
Chemistry
coordination compounds
Which of the following statements related to lanthanoids is incorrect?
KCET - 2024
KCET
Chemistry
Classification of elements and periodicity in properties
Identify the incorrect statement:
KCET - 2024
KCET
Chemistry
Surface Chemistry
The complex compounds [Co(NH₃)₅SO₄]Br and [Co(NH₃)₅Br]SO₄ are:
KCET - 2024
KCET
Chemistry
coordination compounds
The type of linkage present between nucleotides is:
KCET - 2024
KCET
Chemistry
Biomolecules
The incorrect statement about the Hall-Heroult process is:
KCET - 2024
KCET
Chemistry
General Principles and Processes of Isolation of Elements
Which one of the following does not represent the Arrhenius equation?
KCET - 2024
KCET
Chemistry
Thermodynamics
For the reaction, A ⇌ B, E
a
= 50 kJ mol
−1
and ΔH = −20 kJ mol
−1
. When a catalyst is added, E
a
decreases by 10 kJ mol
−1
. What is the E
a
for the backward reaction in the presence of catalyst?
KCET - 2024
KCET
Chemistry
Thermodynamics
$\alpha$-D-(+)-glucose and $\beta$-D-(+)-glucose are:
KCET - 2024
KCET
Chemistry
Biomolecules
But-1-yne on reaction with dilute H2SO4 in the presence of Hg2+ ions at 333K gives:
KCET - 2024
KCET
Chemistry
Haloalkanes and Haloarenes
A pair of isoelectronic species having a bond order of one is:
KCET - 2024
KCET
Chemistry
Classification of elements and periodicity in properties
In the analysis of III group basic radicals of salts, the purpose of adding NH₄Cl (solid) to NH₄OH is:
KCET - 2024
KCET
Chemistry
Some basic concepts of chemistry
0.48 g of an organic compound on complete combustion produced 0.22 g of CO₂. The percentage of C in the given organic compound is:
KCET - 2024
KCET
Chemistry
Some basic concepts of chemistry
For the reaction PCl5→PCl3+Cl2, the rate and rate constant are 1.02×10−4mol L−1s−1 and 3.4×10−5s−1, respectively, at a given instant. The molar concentration of PCl5 at that instant is:
KCET - 2024
KCET
Chemistry
Some basic concepts of chemistry
Identify the wrong relation for real gases:
KCET - 2024
KCET
Chemistry
Some basic concepts of chemistry
For which one of the following mixtures is composition uniform throughout?
KCET - 2024
KCET
Chemistry
Some basic concepts of chemistry
The energy associated with the first orbit of He+ is:
KCET - 2024
KCET
Chemistry
Some basic concepts of chemistry
Select the correct statement:
KCET - 2024
KCET
Chemistry
General Principles and Processes of Isolation of Elements
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