List of top Chemistry Questions asked in KCET

The sodium fusion extract is boiled with concentrated nitric acid while testing for halogens. By doing so, it

The IUPAC name of the given organic compound is HC \( \equiv \) C - CH = CH - CH\(_2\).

The correct sequence of \(\alpha\)-amino acid, hormone, vitamin, carbohydrates respectively is

In the titration of potassium permanganate (KMnO\(_4\)) against Ferrous ammonium sulphate (FAS) solution, dilute sulphuric acid but not nitric acid is used to maintain acidic medium, because

The group reagent NH\(_4\)Cl (s) and aqueous NH\(_3\), will precipitate which of the following ion

Which formula and its name combination is incorrect?

A ligand which has two different donor atoms and either of the two ligates with the central metal atom/ion in the complex is called

Which of the following statements are true about \( [NiCl_4]^{2-} \)?
(a) The complex has tetrahedral geometry.
(b) Co-ordination number of Ni is 2 and oxidation state is +4.
(c) The complex is sp\(^3\) hybridised.
(d) It is a high spin complex.
(e) The complex is paramagnetic.

A member of the Lanthanoid series which is well known to exhibit +4 oxidation state is

In the reaction between hydrogen sulphide and acidified permanganate solution,

Gold sol is not a:

Identify the incorrect statement:

The energy associated with the first orbit of He+ is:

In the following scheme of reaction.

X, Y and Z respectively are:

8.8 g of monohydric alcohol reacts with ethyl magnesium iodide, releasing 2240 $cm^3$ of ethane at STP. This monohydric alcohol forms a carbonyl compound that answers Tollen’s test. The alcohol is:

The incorrect statement about the Hall-Heroult process is:

Solubility product of CaC₂O₄ at a given temperature in pure water is 4 × 10⁻⁹ mol²/L². Solubility of CaC₂O₄ at the same temperature is:

Identify the wrong relation for real gases:

A metalloid is:

For which one of the following mixtures is composition uniform throughout?

From the diagram

\( \Delta H \) for the reaction C → A is:

A pair of isoelectronic species having a bond order of one is:

Identify the incorrect statement from the following:

The correct decreasing order of boiling points of hydrogen halides is: