List of top Chemistry Questions

The compound that does not answer iodoform test is

Carboxylic acids are more acidic than phenols because

The major product 'A' in the given reaction is
Benzaldehyde + Acetophenone \(\xrightarrow{\text{OH}^- / 293\text{K}}\) 'A' (Major product)

The correct IUPAC name of CH\(_3\) - C(CH\(_3\))\(_{2}\) - O - C\(_2\)H\(_5\) is

The catalyst used in the manufacture of Ammonia by Haber's process is:

Which element has the highest electronegativity?

The EAN (Effective Atomic Number) of Iron in \([Fe(CN)_6]^{4-}\) is:

Ozonolysis of 2-Methylbut-2-ene followed by reaction with Zn/H\(_2\)O gives:

Which of the following is a monomer of Nylon 6,6?

The maximum kinetic energy of photoelectrons depends on:

What is the relationship between maximum kinetic energy and wavelength in the photoelectric effect?

What is the name of the hydrocarbon that yields ethanal and propanone upon reductive ozonolysis?

Which molecule has a net dipole moment of zero among \(NH_3\), \(H_2O\), \(NF_3\), and \(CCl_4\)?

In which of the following option/options, the order of arrangement does not agree with the variation of property indicated against it?
(a) BF\(_3\)>NF\(_3\)>NH\(_3\) (Dipole moment)
(b) HgCl\(_2\)>NH\(_4\)\(^+\)>SF\(_4\) (Bond angle)
(c) NH\(_3\)<H\(_2\)O<HF (Strength of intermolecular hydrogen bonding)
(d) H - I>H - Br>H – Cl (Bond length)

Identify the reagent used in the Lucas test to distinguish between primary, secondary, and tertiary alcohols.

The decreasing order of acid strength of the following is} \[ \text{FCH}_2\text{COOH,\ \ NCCH}_2\text{COOH,\ \ NO}_2\text{CH}_2\text{COOH,\ \ ClCH}_2\text{COOH} \]

Two forms of D-glucopyranose, are called

Match the following:

An organic compound A with the molecular formula C$_6$H$_4$NO$_2$Br is treated with magnesium in dry ether gives an organometallic compound which on treatment with CO$_2$ (dry ice) gives compound B. B on hydrolysis gives C. The name of the products A and C are

An organic liquid A containing C, H and O with p$K_a$ value 15.9, used in polishing woods, on heating with concentrated sulphuric acid gives a gaseous product B with the empirical formula CH$_2$. B decolourises bromine water as well as dilute permanganate solution. The compound A and B are respectively

Which of the following is used in the production of freon refrigerant R-22?

When phenol is treated with excess of bromine water, it gives