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List of top Chemistry Questions asked in KCET
The transition element (≈5%) present with lanthanoid metal in Misch metal is:
KCET - 2024
KCET
Chemistry
The p-Block Elements
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 from the following:
KCET - 2024
KCET
Chemistry
Environmental Chemistry
Select the correct statement:
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
$NO_2$ gas is :
KCET - 2024
KCET
Chemistry
The p-Block Elements
For the coagulation of positively charged hydrated ferric-oxide sol, the flocculating power of the ions is in the order:
KCET - 2024
KCET
Chemistry
Surface Chemistry
The value of 'A' in the equation
\( \lambda_m = \lambda_m^0 - A\sqrt{C} \)
is same for the pair
KCET - 2024
KCET
Chemistry
Solutions
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
Which one of the following pairs will show positive deviation from Raoult's Law?
KCET - 2024
KCET
Chemistry
Solutions
A current of 3 A is passed through a molten calcium salt for 1 hr 47 min 13 sec. The mass of calcium deposited is:
KCET - 2024
KCET
Chemistry
Redox reactions
How many Coulombs are required to oxidise 0.1 mole of H
2
O to oxygen?
KCET - 2024
KCET
Chemistry
Redox reactions
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
MnO exhibits:
KCET - 2024
KCET
Chemistry
The solid state
Vapour pressure of a solution containing 18 g of glucose and 178.2 g of water at 100°C is:
(Vapour pressure of pure water at 100°C = 760 torr)
KCET - 2024
KCET
Chemistry
Solutions
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
The number of atoms in 4.5 g of a face-centred cubic crystal with edge length 300 pm is:
KCET - 2024
KCET
Chemistry
The solid state
The first chlorinated organic insecticide prepared is:
KCET - 2024
KCET
Chemistry
Chemistry in Everyday Life
A mixture of phenol and aniline shows negative deviation from Raoult's law. This is due to the formation of:
KCET - 2024
KCET
Chemistry
Solutions
In the reaction between moist SO₂ and acidified permanganate solution:
KCET - 2024
KCET
Chemistry
Redox reactions
Which one of the following nitrates will decompose to give NO₂ on heating?
KCET - 2024
KCET
Chemistry
The S-Block Elements
In the given sequence of reactions, identify ‘P’, ‘Q’ and ‘S’ respectively:
KCET - 2024
KCET
Chemistry
Haloalkanes and Haloarenes
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
Which of the following halides cannot be hydrolysed?
KCET - 2024
KCET
Chemistry
The p-Block Elements
Which one of the following properties is generally not applicable to ionic hydrides?
KCET - 2024
KCET
Chemistry
Hydrogen Bonding
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