DELSU Chemistry 2015/2016 Past Questions

Practice each question, then open it to see the full details.

The type of bonding in (Cu(NH₃)₄) is

A.coordinate
B.electrovalent
C.metallic
D.covalent

Which of the following is NOT a giant molecule

A.protein
B.sucrose
C.starch
D.enzyme

The products of the photochlorination of ethanoic acid are

A.CH₃COOCI + HCI
B.CH₃COCI+HOCI
C.ClCH₂COCI + HCI
D.CICH₂COOH + HCI

Which of the following represents an aromatic compound

A.C₆H₁₂
B.C₆H₅OH
C.C₆H₈
D.CH0H

Dehydration of propan-1-ol produces

A.propanoic acid
B.propanal
C.pronene
D.propane-1, 2, 3 - triol

The gas evolved when alkanols react with Sodiun is

A.oxygen
B.carbon(iv) oxide
C.nitrogen
D.hydrogen

In testing for a reducing sugar, the food substance is usually warned with

A.sulphuric acid
B.million's reagent
C.sudan(iii)
D.benedict's solution

The electrons that are mostly easily removed from ²⁴₁₂Mg are in which orbital.

A.Is
B.2s
C.2p
D.3s

What volume of 0.20moldm^-3 NaOH solution would yield 5.0 of NaOH on evaporation to dryness? (NaOH 40g/mol)

A.400cm³
B.624cm³
C.1000cm³
D.160cm³

When excess ethene is shaken with acidified KMnO₂ solution, the product obtained is

A.ethane
B.ethanol
C.ethane-1, 2-diol
D.ethanoic acid