NEET Test 157...

Formic acid can be distinguished from acetic acid by reaction with:

An example of axile placentation is:

Among the following, the maximum covalent character is shown by the compound:

Which of the following pairs of hydrides is polymeric in nature?

The percentage of nitrogen in urea is about:

Birth control pills check ovulation in female by inhibiting the secretion of:

What is the maximum concentration of equimolar solutions of ferrous sulphate and sodium sulphide so that when mixed in equal volumes, there is no precipitation of iron sulphide? (For iron sulphide, 𝐾_sp = 6.3 × 10⁻¹⁸).

The melting points of Cu, Ag, and Au follow the order:

At rest, a well-trained athlete will have a heart rate ______ a normal person.

Calculate the heat of formation of diborane [B₂H₆( g)] at 298 K if the heat of combustion of it is −1941 kJ/mol and heats of formation of B₂O_3( s) and H₂O_(g) are −2368 kJ/mol and −241.8 kJ/ mol respectively.