List of top Chemistry Questions

Which of the following fluorides of oxygen do not exist?
Catalytic dehydrogenation of primary alcohol will produce a:
A tetrapeptide possesses _____ peptide bonds and can be ______ into amino acids fragments
Which of the following is the strongest oxidizing agent?
The number of spectral lines that are possible when electrons in fourth energy level in different hydrogen atoms return to ground state.
One of the following aldehydes undergoes Cannizzaro’s reaction and reduces the Schiff’s reagent, but does not reduce Fehling’s reagent. That is
Which of the following compounds is formed by covalent bonding?
A carbamate contains:
The orbital angular momentum of a 4d electron will be:
What is the molar mass of \( \text{Na}_2\text{CO}_3 \)?
What is the IUPAC name of the compound \( \text{CH}_3\text{CH}_2\text{COOH} \)?
An aromatic compound 'A' C7H6Cl2  gives white precipitate on boiling with AgNO3 solution and yields C7H7OCl on treatment with NaOH.  'A' on oxidation gives a monochloro benzoic acid which affords only one mononitroderivative.  The compound A is:
The number of bridging \(CO\) ligands and \(Co-Co\) bonds in \(Co_2(CO)_8\), respectively are:
Consider the following reaction: The product is
hydrocarbons
The correct order of atomic radii is:
At equilibrium the concentrations of N2=3.0×10−3M,O2=4.2×10−3M and NO=2.8×10−3M in a sealed vessel at 800 K. What will be KC for the reaction N2( g)+O2( g)⇋2NO(g)?
If Ksp of Ag2CO3 is 8×10−12, the molar solubility of Ag2CO3 in 0.1MAgNO3 is:
Which of the following are amongst the few carbon-containing compounds NOT classified as organic?
For a certain reaction, ΔHr is 400 kJ/mol and ΔS=0.2 kJ/mol K. Above what minimum temperature in Kelvin, the reaction becomes spontaneous.
The molarity of NaCl solution is 3 M. Calculate the morality of the solution. (Given density of the solution = 1.25 g/mL)
Write IUPAC names of the following coordination entities:
(a) \( [Fe(en)_2Cl_2]^+ \)
(b) \( [Co(NH_3)_4(H_2O)Br]SO_4 \)
(c) \( [Ni(CN)_4]^{2- \)
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Choose the correct statement(s):
A Beryllium oxide is purely acidic in nature
B Beryllium carbonate is kept in the atmosphere of $CO _2$
C Beryllium sulphate is readily soluble in water
D Beryllium shows anomalous behavior
Choose the correct answer from the options given below:

Preparation of ethers by acid dehydration of secondary or tertiary alcohols is not a suitable method. Give reason.

What is the coordination entity formed when excess of aqueous \(KCN\) is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when \(H_2S(g)\) is passed through this solution?

The ionisation potential is lowest for the