Question

2) 3 g of a dried agricultural waste is leached
with benzene and ethanol mixture (2:1 v/v) at
60 °C for 3 h. After leaching, the residue is dried in a
hot air oven at 105 °C to a constant weight of 1.6 g.
This dried material is put in a flask containing 150 ml
of (N/2) NaOH solution. The mixture is boiled for 3.5 h
with recycled distilled water. After this the residue is
washed with distilled water till all the sodium ions
are removed and dried to a constant weight of 1.3 g.
Determine the extractives and hemicelluloses content
of this waste on dry basis.
46.67% and 10%
10.67% and 25.67%
17.67% and 15.67%
5% and 15%​

Answer 1

Answer:

ok I will answer this question

Explanation:

frist ofall I don't know

Answer 2

Explanation:

The extractive and hemicelluose content is 46.67% and 10%