List of top Chemistry Questions

Identify a molecule having highest dipole moment from following.
Which of the following equations is used to obtain enthalpy change of a reaction?
What is uncertainty in velocity of an electron if uncertainty in measurement of position is 50 pm ? \((m_e = 9.1\times 10^{-31}\text{kg}, h = 6.63\times 10^{-34}\text{Js}, π = 3.142)\)
Calculate the number of molecules present in 2.24 \(\text{dm}^3\) of carbon dioxide at STP ?
Which of the following elements belongs to group 2 and sixth period of periodic table?
Which polymer is commonly used in nonstick cookwares ?
Buna-S is prepared from
The letter 'D' in carbohydrates signifies
Which of the following is found to raise the HDL level in the blood?
Identify the polymer used to prepare plastic bottles needed to store cooking oil.
Which of the following molecules is capable of forming Zwitter ion?
Identify the name of the above reaction.
Identify the product X in the following reaction.
Tertiary amines have the lowest boiling points because ,
Acetone on heating with \(\text{CrO}_3\) mainly forms,
When sodium bicarbonate is added to an organic compound, brisk effervescences is evolved. This indicate the presence of which functional group.
Which of the following reagents limits the oxidation of \(\text{R-CH}_2\text{OH}\) up to R-CHO only?
What is action of \(\text{CH}_3\text{ONa}\) on \(\text{CH}_3\text{CH}_2\text{Br}\)
\(\text{CH}_3\text{ONa}+\text{CH}_3\text{CH}_2\text{Br}\rightarrow\) ?
What is the product P obtained in following reaction?
\(\text{CH}_3\text{CH}_2\text{Br}+\text{AgCN}_{(alc)}\rightarrow \text{P}\)
Which of the following ether, on hydrolysis, gives two different products that are successive members of the homologous series?
Identify the reagent used for replacement of \(-\text{N}_2^+\text{Cl}^-\) from benzene diazonium chloride by iodine.
The number of ligands which are directly bonded to the metal is known as
What is the oxidation state of chromium in the final product when KI reacts with acidified potassium dichromate solution?
If for a first-order reaction, \([A]_0 = 1.0 \text{M}\) and \([A]_t = 0.25 \text{M}\) after 276 s, find the value of the rate constant (k).
The equation for the rate constant is \(k = Ae^{-E_a/RT}\).
A chemical reaction will proceed more rapidly if there is a decrease in