List of top Chemistry Questions asked in KCET

The IUPAC name for

Amphoteric Oxide among the oxide

In oxygen and carbon molecule the bonding is

Element X, Y and Z have atomic number 19, 37 and 55 respectively. Which of the following statements is true about them

If the wavelength of photon is \(2.2 \times 10^{-11}\) and \(h = 6.6 \times 10^{-34} \, \text{Js}\). Then momentum of photon

An Aqueous solution of Alcohol contains 18 g of water and 414 g of ethyl alcohol .The mole fraction of water is

The work done when 2 moles of an ideal gas expands reversibly and isothermally from a volume of 1L to 10L at 300 K is (R = 0.0083 kJK mol^-1)

The Volume of 2.8 g CO at 27 degree C and 0.821 atm pressure is (R = 0.08210 Lit. atm \(\text{K}^{-1} \text{mol}^{-1}\))

Which is the most VISCOUS?

Henry’s law constant for the solubility of N₂ gas in water at 298K is 1.0 × 10⁵ atm. The mole fraction of N₂ in air is 0.8. The number of moles of N₂ from air dissolved in 10 moles of water at 298K and 5 atm pressure is

The reagent which can do the conversion $CH _{3} COOH \longrightarrow CH _{3}- CH _{2}- OH $ is

Which of the following is not true for oxidation?

Choose the correct statement

In the detection of II group acid radical, the salt containing chloride is treated with concentrated sulphuric acid, the colourless gas is liberated. The name of the gas is

The correct IUPAC name of

Which of the following does not represent property stated against it?

Which one of the following is correct for all elements from $Sc$ to $Cu$ ?

Which of the following is an incorrect statement?

A colourless, neutral, paramagnetic oxide of Nitrogen $'P'$ on oxidation gives reddish brown gas $Q$. $Q$ on cooling gives colourless gas $R$. $R$ on reaction with P gives blue solid $S$. Identify $P , Q , R , S$, respectively

$K _{ u }$ values for acids $H _{2} SO _{3}, HNO _{2}, CH _{3} COOH$ and $HCN$ are respectively $1.3 \times 10^{-2}, 4 \times 10^{-4}, 1.8 \times 10^{-5}$ and $4 \times 10^{-10}$, which of the above acids produces stronger conjugate base in aqueous solution?

Which of the following is not true for oxidation?

The method by which aniline cannot be prepared is

Permanent hardness cannot be removed by

Which of the following pairs has both the ions coloured in aqueous solution? [Atomic numbers of Sc = 21, Ti = 22, Ni = 28, Cu = 29, Mn = 25]

The number of six membered and five membered rings in Buckminster Fullerence respectively is