>
Chemistry
List of top Chemistry Questions
What is the value of \( K_{sp} \) for saturated solution of \( \text{Ba(OH)_2 \) having pH 12 ?
MHT CET - 2025
MHT CET
Chemistry
Aldehydes, Ketones and Carboxylic Acids
The number of lone pair of electrons and the hybridization of Xenon (Xe) in XeOF$_2$ are
WBJEE - 2025
WBJEE
Chemistry
Chemical bonding and molecular structure
Arrange the following compounds in increasing order of their acidic strength: (A) 3-nitrophenol
(B) 3,5-Dinitrophenol
(C) 2,4,6-Trinitrophenol
(D) Phenol
CUET (UG) - 2025
CUET (UG)
Chemistry
Rate of a Chemical Reaction
What happens when C₆H₅–O–R is treated with HX?
CUET (UG) - 2025
CUET (UG)
Chemistry
Ethers
What is the enthalpy of neutralization for CH
3
COOH + NaOH?
BCECE - 2025
BCECE
Chemistry
Enthalpy change
The IUPAC name of allylamine is
KEAM - 2025
KEAM
Chemistry
Structure of Amines
In which of the following liquid inter molecular hydrogen bonding does not exist?
KEAM - 2025
KEAM
Chemistry
Hydrogen bonding
Benzoyl chloride is converted to benzaldehyde by
KEAM - 2025
KEAM
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Denatured alcohol with colour and foul smell is made now a days by mixing ethanol with
KEAM - 2025
KEAM
Chemistry
Alcohols, Phenols and Ethers
Phenol is treated with $H_{2}SO_{4}$ to give a product 'X' which on treatment with conc. $HNO_{3}$ gives compound 'Y'. The compounds 'X' and 'Y' are respectively:
KEAM - 2025
KEAM
Chemistry
Alcohols, Phenols and Ethers
$S_{N}1$ reaction is most favoured by:
KEAM - 2025
KEAM
Chemistry
Methods of Preparation of Haloalkanes
Which of the following is a vicinal dihalide?
KEAM - 2025
KEAM
Chemistry
Methods of Preparation of Haloalkanes
One mole of an alkene reacts with acidic $KMnO_{4}$ to give two moles of ethanoic acid. What is the alkene?
KEAM - 2025
KEAM
Chemistry
Hydrocarbons
On complete combustion $0.12\ \text{g}$ of an organic compound gives $0.11\ \text{g}$ of $CO_{2}$. What is the percentage of carbon in the organic compound?
KEAM - 2025
KEAM
Chemistry
Hydrocarbons
The number of bridging carbonyl groups in $[Mn_2(CO)_{10}]$ is
KEAM - 2025
KEAM
Chemistry
Bonding in Metal Carbonyls
Which of the following complex is optically active?
KEAM - 2025
KEAM
Chemistry
Isomerism in Coordination Compounds
Which of the following transition metal has the highest magnetic moment?
KEAM - 2025
KEAM
Chemistry
properties of d block elements
Which of the following is not an interstitial compound?
KEAM - 2025
KEAM
Chemistry
properties of d block elements
In acidic medium, dichromate behaves as an oxidizing agent represented as: $Cr_2O_7^{2-} + xH^+ + ye^- \rightarrow 2Cr^{3+} + zH_2O$. The values of $x$, $y$ and $z$ are respectively:
KEAM - 2025
KEAM
Chemistry
Balancing a redox reaction
Which of the following 3d transition metal has +5 state as the more stable state?
KEAM - 2025
KEAM
Chemistry
properties of d block elements
Which of the following is true in respect of a zero order reaction?
KEAM - 2025
KEAM
Chemistry
Collision Theory of Chemical Reactions
A first order reaction has a rate constant of $6.93\times10^{-4}\ \text{s}^{-1}$ at $300\ \text{K}$. What is the half-life period of the reaction in seconds at the same temperature?
KEAM - 2025
KEAM
Chemistry
Half life
The binary liquid mixture that has positive deviation from Raoult's law is
KEAM - 2025
KEAM
Chemistry
Types of Solutions
The electrolyte used in lead storage battery is
KEAM - 2025
KEAM
Chemistry
Electrochemistry
The EMF of the cell at $298\ \text{K}$ is $Mg_{(s)}|Mg^{2+}(aq,\ 0.10\ \text{M})||Ag^{+}(aq,\ 0.001\ \text{M})|Ag_{(s)}$. (Given: $E^{0}_{cell}=3.17\ \text{V}$ and $\frac{2.303RT}{F}=0.06\ \text{V}$)
KEAM - 2025
KEAM
Chemistry
Electrochemical Cells
Prev
1
...
173
174
175
176
177
...
1426
Next