MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Chemistry

Van Arkel's method of purification of metals involves converting the metal to a ______.

Identify the colloidal molecule containing hydrophilic head and hydrophobic tail within it.

In which among the following solids, Schottky defect is not observed?

Calculate Standard cell potential for a cell having following reaction, \[\ce{2Al(s) + 3Ni^{2+} -> 2Al^{3+} + 3Ni(s)}\]

`("E"_"Ni"^circ = - 0.25 "V" and "E"_"Al"^circ = 1.66 "V")`

Which of the following reactions is used to prepare aryl fluorides from diazonium salts and fluoroboric acid?

Starch is an example of which of the following type of colloid?

Ethers when dissolved in cold concentrated sulphuric acid forms ______.

Identify positively charged sol from following.

Identify the correct decreasing order of precipitation power of flocculating ion added, from following.

When electrons are trapped into the crystal in anion vacancy, the defect is known as ______.

Aldol condensation between which of the following compounds followed by dehydration gives 4-Methylpent-3-en-2-one?

Benzaldehyde gives all tests positive EXCEPT ____________.

The product formed after reaction between benzaldehyde and methyl magnesium iodide followed by acid hydrolysis is ____________.

The standard enthalpy of formation of ammonia is −46.0 kJ mol⁻¹. The enthalpy change for the reaction:

\[\ce{2NH3_{(g)} -> 2N2_{(g)} + 3H2_{(g)}}\] is ____________.

Which of the following is Schiff's reagent?

Ethyl methyl ketone can be reduced to n-butane by which of the following reactions?

____________ states that equal volumes of all gases under identical conditions of temperature and pressure contain equal number of molecules.

An element has a bee structure with cell edge of 288 pm. The density of element is 7.2 g cm^-3. What is the atomic mass of an element?

Identify the INCORRECT reaction.

Identify A in the following reaction.

\[\ce{A + CH3MgBr ->[Ether] complex ->[H3O+] (CH3)3C - OH}\]