Explanation

7a.(Acts 9:21-31)

- After his conversion, Saul remained with the disciples at Damascus for several days

- He proclaimed in the synagogue at Damascus that Jesus was the son of God

- People who heard him were amazed since they knew him as a serious persecutor of the believers

- The people remarked, "is not this man who wreaked havoc in Jerusalem on those who called on Jesus' name?"

- A further remark was made that Saul had come to Damascus to arrest the believers and send them to the chief priest etc.

7b.

- To win the favour of others

- Due to jealousy

- Religious or political differences

- Ethnic conflicts or differences

- Revenge or retaliation

- Unhealthy competition

- Inferiority or Superiority complex etc.

Correct Answer: D. 350°

Explanation

(a)(i) Loss of mass in anode = 7.20 – 4 = 3.20g

Mass of cathode after the experiment = 5.75 + 3.20

= 8,95g.

(ii) I. Anode : Cu \(\to\) Cu\(^{2+}\) + 2e\(^-\)

II. Cathode : Cu\(^{2+}\) + 2e\(^-\) \(\to\) Cu

(iii) Colour of solution does not change because copper ions discharged at the cathode are replaced by copper ion (Cu\(^{2+}\)) produced at the anode.

(iv) 1 mole Cu = 2F mole of Cu deposited = \(\frac{3.2}{63.5}\) = 0.05

number of Faradays used = 0.05 x 2 = 0.1F

Quantity of electricity used = 80 x 60 x 2 = 9600C

9600 = 0.1F

F = \(\frac{9600}{0.1}\) = 96000C

(b) MnO\(^-_4\) + 1\(^-\) + H\(^+\) \(\to\) I\(_2\) + H\(_2\)O + Mn\(^{(2+)}\)

(i) 2\(^-\) - 2e \(\to\) I\(_2\) (oxidation).

(ii) MnO\(^-_4\) + 8H\(^+\) + 5e\(^-\) \(\to\) Mn\(^{(2+)}\) + 4H\(_2\)O (reduction)

(c)(i) Tin ore (SnO\(_2\)) or casseterite is crushed and washed with water. It is roasted in air, the product is mixed with powdered charcoal and heated strongly at about 1300°C to obtain molten tin.

(ii) Uses of tin: (1) It is used for making alloys (2) It is used for coating steel or for tin plating (electroplating).

(iii) Corresponding property: (1) It has high tensile strength, lightness (2) It is non-toxic, non-corrosive, inert and unreactive.

(d)(i) Pollution is the contamination of the environment by substances in concentrations that can cause injur, to lives and property.

(ii) It is dangerous to run a generator in a room because the carbon (II) oxide released from the exhaust combines with blood, leading to blood poisoning which can result to death.

Correct Answer: D. most intense point of the conflict

Correct Answer: D. she wanted her to buy anything

Explanation

The original direct speech question is: Do *you* want *me* to buy *her* anything?

Let's break down the components for reported speech:

1. Reporting verb: She asked Asman (past tense). This means the verb in the reported clause must shift to a past tense.

2. The question structure: Do you want... becomes if [subject] wanted...

3. Pronoun you: In the direct speech, you refers to Asman. So, in reported speech, this should be he (if Asman is male) or she (if Asman is female).

4. Pronoun me: In the direct speech, me refers to the person who is asking Asman (the She who asked Asman). In reported speech, this becomes her.

5. Pronoun her (the third party): This remains her.

Combining these, the ideal reported speech would be:

She asked Asman if he/she (Asman) wanted her (the asker) to buy her (the third party) anything.

Now let's evaluate the given options:

• A. she wants to buy her anything

* Incorrect tense (wants instead of wanted).

• B. you want to buy anything

* Incorrect tense (want instead of wanted).

* Incorrect pronoun (you is still present).

• C. she wanted to buy anything

* Correct tense (wanted).

* she (subject) refers to the asker. This means the original question would have been Do *I* (the asker) want to buy anything?. This changes the agent of want from Asman to the asker, and significantly alters the meaning from the original question (Do *you* want *me* to buy her anything?).

• D. she wanted her to buy anything

* Correct tense (wanted).

* For this to be correct, she (the subject of wanted) must refer to Asman (assuming Asman is female).

* her (the object of wanted, and the subject of to buy) must refer to the asker.

* The final her (the third party) from the original question is omitted, which is a common simplification in reported speech.

Let's test this interpretation for option D:

• Original direct speech: Asman (female), do you (Asman) want me (the asker) to buy her anything?

• Reported speech: She asked Asman if she (Asman) wanted her (the asker) to buy anything.

This interpretation fits perfectly. Although Asman is often a male name, it can be female, and this is the only way for option D to accurately reflect the original question's meaning and pronoun roles. Options A, B, and C either have incorrect tenses or fundamentally change the meaning of who wants what.

The final answer is D

Correct Answer: C. residual

Explanation

Residual unemployment is the type of unemployment that occurs in periods of full employment, as a result of being mentally, physically, or emotionally unfit to work.

Correct Answer: B. form utility

Explanation

Form utility refers to the change in the form or structure of a commodity during its manufacturing process in other to increase its utility. For example, a change in the form of raw cotton to clothing material. Cotton in its raw form does not give satisfaction until it is changed to a clothing

Correct Answer: B. eloping to the city

Correct Answer: B. 2.46mm

Correct Answer: B. reduced to a quarter