Chemistry 2000 WAEC Past Questions

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Which of the following procedures is suitable for identifying the food colouring added to a pastry sample?

A. carry out some food tests
B. examine the pastry sample under a microscope
C. Do a chromotogram of the colouring extract
D. determine the molar mass of the colouring

View Answer & Discuss (1) WAEC 2000

C₈H₁₈ will undergo the following reactions except

A. cracking
B. combustion
C. substitution
D. addition

View Answer & Discuss (1) WAEC 2000

Which of the following is correct about both compounds show below? CH₃CH ₂CH₂OH;CH ₃
CH ₂CH(OH)CH₃

A. They have identical physical properties
B. They are structural isomers
C. Their general molecular formula is the same
D. They are oxidized to alkanones

View Answer & Discuss (2) WAEC 2000

Which of the following needs to be hydrolysed before it shows reducing property?

A. Glucose
B. Maltose
C. Sucrose
D. Fructose

View Answer & Discuss (3) WAEC 2000

Two-organic substances are labelled K and L if K gave a blue-black colour with iodine solution and L gave a deep red precipitate with Million's reagent, it can be concluded that

A. K is a carbhydrate and L is a protein
B. K is alkaline and L is acidic
C. K is unsaturated and L is a reducing sugar
D. K is a reducing agent and L is an amino acid

View Answer & Discuss WAEC 2000

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Chemistry 2000 WAEC Past Questions

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