Cu and HNO₃ are not suitable for preparing hydrogen gas because of their

• A. reactivity and oxidation respectively
• B. conductivity and corrosiveness respectively
• C. melting point and reduction respectively
• D. electronegativity and solubility respectively

On the basis of the contribution to employment, the most important economic sector in West African is?

• A. industry
• B. agriculture
• C. construction
• D. commerce

Which of the following comes last in the chain of distribution? The

• A. consumer
• B. manufacturer
• C. retailer
• D. wholesaler

Choose the interpretation that is most appropriate for each sentence.

He is at the crossroads of his life. This means that it is time for him to

• A. make a very important decision
• B. retrace his steps
• C. make peace with everyone D. take matters seriously
• D. take matters seriously

Government can influence aggregate demand through all the following measures except

• A. reduction in personal income tax
• B. retirement of director-general in the public service
• C. creation of employment opportunities
• D. compulsory deduction from salaries of all categories of workers

The _____ has been presented against the suspect

• A. lot of evidences
• B. some evidences
• C. serious evidences
• D. substantial evidences

Choose the option opposite in meaning to the underlined word(s).

He gave an unsatisfactory excuse but the boss swallowed ithook, line and sinker?

• A. with a pinch of salt
• B. completely
• C. entirely
• D. without mincing words

We have an orange -----------behind our house.

• A. Orchard
• B. Farm
• C. Garden
• D. Bed

A seedling grown in the dark is likely to be

• A. etiolated
• B. dormant
• C. sturdy
• A. etiolated D. stunted

How many grams of bromine will be required to completely react with 10 g of propyne? (C = 12, H = 1, Br = 80)

• A. 20 g
• B. 40 g
• C. 60 g
• D. 80 g