The rate of reaction between marble and hydrochloric acid can be speeded up by using:

Which of the following is NOT found dissolved in plasma?

The number of carbon atoms in the alcohol, pentanol, is:

The alcohol in beer and spirits is called:

Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.

There is hardly a point to our knocking as no one is not at home.

Which one of the following best describes hormones?

The particles in a liquid:

To complete the reaction: acid + carbonate → salt + carbon dioxide + ?, we must add the word:

Which one of these four statements is NOT true?

Which of the relations represented below are functions?

Genetic engineering involves:

An electron, with its charge of 1.6 × 10^-19 C, is moved from one place at +8 V to a different place which is at 0 V.The energy released will be:

The following statements describe the molecules in a gas at around room temperature. Which one is NOT true?

Which of the following relations is represented by the graph shown above?

Which one of the following is NOT a vector quantity?

Instructions: Select the option A, B, C or D that BEST describe the sentence.

Traffic bottlenecks must be ironed out if we are to prevent giant traffic congestion.

The shaded area in the Venn diagram above represents

Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.

The problem with the students is that they arrive late, gives no excuse, and are rude when spoken to.

75 g of freshly dug soil was placed in an oven at 105 ℃ for 24 hours. It was allowed to cool, then reweighed. If the final mass of the dry soil was 66 g, what was the % water content of the original soil sample?

AIDS is a killer disease because: