List of top Chemistry Questions

What is the number of \(sp^3\) hybrid carbon atoms in \(\text{HO}(\text{CH}_2)_2\text{CH}(\text{CH}_3)_2\)?
Which among the following molecule exhibits paramagnetism?
What quantity of \(\text{H}_2\text{O}\) in gram is present in \(0.25\) mol of it?
What is the percentage atom economy when formula weight of product is \(65\) u and the sum of formula weight of reactant is \(130\) u?
What is the wave number of lowest transition associated with Paschen series?
Which from following plants is useful to extract analgesic compound from it ?
Which from following amines when heated with ethanolic KOH and chloroform does NOT produce foul smell ?
Identify the use of LDP from following.
Which of the following is the use of HDPE ?
What is a starting material used to obtain viscose rayon ?
Identify a protein present in nails
Identify glycosidic linkage in lactose.
Identify 'B' in the following reaction
Ethyl cyanide \(\overset{\text{H}_2\text{O}\,}{\rightarrow }\text{A}\overset{\text{H}_2\text{O / dil HCl}\,}{\rightarrow }\text{B}+\text{NH}_3\)
Which of the following isomers of \(\text{C}_4\text{H}_9\text{OH}\) has lowest boiling point ?
What is the number of moles of hydrogen atoms needed to obtain one mole ethanamine from acetamide using \(\text{LiAl H}_4\) /ether as reducing agent.
Identify the 'product' in the following reaction.
Pent - 3 - enenitrile \(\rightarrow _{\text{H}_3\text{O}^+\,}^{\text{Al H (i-Bu)}_2\,}\) Product
Identify the product obtained when isopropyl magnesium chloride in dry ether reacts with dry ice forming a complex, hydrolysed further.
Identify substrate 'S' in the following reaction.
\(\text{S}\overset{\text{Na / dry ether}\,}{\rightarrow }\) 3, 4 - diethyl - 3, 4 - dimethyl hexane
Select the correct decreasing order of acid strength for the following compounds.
a) Ethanol b) 2-Methyl propan-2-ol   c) Phenol   d) p - Nitrophenol
Which of the following is a correct increasing order of ligand field strength ?
What is EAN for metal ion in \([\text{Fe(CN)}_6]^{3-}\) ?
Which from following pair of elements in their respective oxidation states have same number of unpaired electrons ?
Which lanthanoid from following exhibits \(f^{14}\) configuration in +3 state?
For a reaction \(\text{A}⟶\) product, \(k = 2\times 10^{-2} \text{s}^{-1}\). If the initial concentration of A is \(1.0 \text{mol dm}^{-3}\) find the value of \(log\frac{1}{[A]_t}\) after 100 second ?
What is the oxidation state of chlorine in its weakest oxoacid?