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July: Chemistry
Welcome to the July 2021 PositiveNaija Science Quiz!
Date: 25th July, 2021 | Time: 9:00 pm - 9:05 pm
The 15 Questions will be updated on this same post at the stated date and time with replies (answers) by participants to follow accordingly.
Thank you.
Welcome to the July 2021 PositiveNaija Science Quiz!
Date: 25th July, 2021 | Time: 9:00 pm - 9:05 pm
The 15 Questions will be updated on this same post at the stated date and time with replies (answers) by participants to follow accordingly.
Thank you.
Publish/advertise your content on our blog website permanently and have it on Google for only 10,000 Naira. +2349064503292
- A carbon atom with 6 protons, 6 electrons and 6 neutrons would have a mass number of
- 6
- 18
- 12
- 15
- A substance which can act both as an antiseptic and disinfectant is
- Enzyme
- Analgin
- Phenol
- Sodium pentothal
- Which is an explosive?
- NaOH
- Ca(OH)2
- Mg(OH)2
- KOH
- What is the main component of natural gas?
- Propane
- Ethene
- Methane
- Ethane
- Which of the following is not an acid?
- H2SO4
- HNO3
- NaOH
- HCI
- The ‘fizz’ in soft drinks is caused by?
- Hydrogen
- Carbon dioxide
- Nitrogen
- Helium
- Rusting of iron is a chemical change.
- True
- False
- Viscosity index can be defined as?
- (L-U / L-H) x 100
- (L+U / L-H) x 100
- (L-H / L-U) x 100
- (L-H / L+U) x 100
- As the volume is inversely proportional to pressure, we can conclude that
- p1V2 = p2V1
- p2V2 = p1V1
- p1V1 = p2V2
- p1V1 = p2V2
- Which among the following is the heaviest?
- One mole of oxygen
- One molecule of sulphur trioxide
- 100 amu of uranuim
- 44 g of carbon dioxide
- Which of the following is classified as a metal?
- Ne
- Br
- F
- K
- Which element has the largest atomic radius?
- Li
- Na
- Rb
- F
- Which type of radiation is the least penetrating?
- alpha
- beta
- gamma
- x-ray
- 14) In an electrolytic cell, the electrode at which the electrons enter the solution is called the [……….]; the chemical change that occurs at this electrode is called [……….].
- anode, oxidation
- anode, reduction
- cathode, oxidation
- cathode, reduction
- Which of the following is used in hospital to purify air?
- Sodium peroxide
- Sodium sulphate
- Sodium nitrate
- Cuprous oxide
- A carbon atom with 6 protons, 6 electrons and 6 neutrons would have a mass number of
- 6
- 18
- 12
- 15
- A substance which can act both as an antiseptic and disinfectant is
- Enzyme
- Analgin
- Phenol
- Sodium pentothal
- Which is an explosive?
- NaOH
- Ca(OH)2
- Mg(OH)2
- KOH
- What is the main component of natural gas?
- Propane
- Ethene
- Methane
- Ethane
- Which of the following is not an acid?
- H2SO4
- HNO3
- NaOH
- HCI
- The ‘fizz’ in soft drinks is caused by?
- Hydrogen
- Carbon dioxide
- Nitrogen
- Helium
- Rusting of iron is a chemical change.
- True
- False
- Viscosity index can be defined as?
- (L-U / L-H) x 100
- (L+U / L-H) x 100
- (L-H / L-U) x 100
- (L-H / L+U) x 100
- As the volume is inversely proportional to pressure, we can conclude that
- p1V2 = p2V1
- p2V2 = p1V1
- p1V1 = p2V2
- p1V1 = p2V2
- Which among the following is the heaviest?
- One mole of oxygen
- One molecule of sulphur trioxide
- 100 amu of uranuim
- 44 g of carbon dioxide
- Which of the following is classified as a metal?
- Ne
- Br
- F
- K
- Which element has the largest atomic radius?
- Li
- Na
- Rb
- F
- Which type of radiation is the least penetrating?
- alpha
- beta
- gamma
- x-ray
- 14) In an electrolytic cell, the electrode at which the electrons enter the solution is called the [……….]; the chemical change that occurs at this electrode is called [……….].
- anode, oxidation
- anode, reduction
- cathode, oxidation
- cathode, reduction
- Which of the following is used in hospital to purify air?
- Sodium peroxide
- Sodium sulphate
- Sodium nitrate
- Cuprous oxide
Publish/advertise your content on our blog website permanently and have it on Google for only 10,000 Naira. +2349064503292
1.A 2.B. 3.A 4.A 5.B 6B 7B 8.C 9.C 10. C 11 D 12D 13 A 14 A 15B
1.A 2.B. 3.A 4.A 5.B 6B 7B 8.C 9.C 10. C 11 D 12D 13 A 14 A 15B
- 1.a
2.d
3.c
4.c
5.c
6.b
7.a
8.c
9.c
10b
11.d
12.c
13.a
14.c
15.a
- 1.a
2.d
3.c
4.c
5.c
6.b
7.a
8.c
9.c
10b
11.d
12.c
13.a
14.c
15.a
1. C
2. C
3. D
4. A
5. C
6. B
7. B
8. B
9. C
10. B
11. D
12. C
13. A
14. B
15. A
1. C
2. C
3. D
4. A
5. C
6. B
7. B
8. B
9. C
10. B
11. D
12. C
13. A
14. B
15. A
1. c
2.d
3.d
4.c
5.c
6.b
7.a
8.b
9.d
10.a
11.d
12.c
13.a
14.d
15.a
1. c
2.d
3.d
4.c
5.c
6.b
7.a
8.b
9.d
10.a
11.d
12.c
13.a
14.d
15.a
Quote from
Zino on July 25, 2021, 9:03:56 PM
1.c
2.c
3.a
4.c
5.c
6.b
7.a
8.b
9.c
10.c
11.d
12.c
13.a
14.a
15.a
1.c
2.c
3.a
4.c
5.c
6.b
7.a
8.b
9.c
10.c
11.d
12.c
13.a
14.a
15.a
- 1.a
2.d
3.c
4.c
5.c
6.b
7.a
8.c
9.c
10b
11.d
12.c
13.a
14.c
15.a
- 1.a
2.d
3.c
4.c
5.c
6.b
7.a
8.c
9.c
10b
11.d
12.c
13.a
14.c
15.a
Quote from
Oyinlola on July 25, 2021, 9:04:24 PM
1 C
2 C
3 D
4C
5 C
6 B
7 A
8 B
9 C
10 C
11 B
12 D
13 A
14 D
15 D
1 C
2 C
3 D
4C
5 C
6 B
7 A
8 B
9 C
10 C
11 B
12 D
13 A
14 D
15 D
Quote from
Midells on July 25, 2021, 9:04:36 PM
1) C
2) c
3 A
4) C 5) c 6.b 7. A 8. C 9.c 10.c 11.d.12 d 13 a 14. A 15 a
1) C
2) c
3 A
4) C 5) c 6.b 7. A 8. C 9.c 10.c 11.d.12 d 13 a 14. A 15 a
1. C
2. B
3. C
4. C
5. C
6. B
7. A
8. B
9. C
10. B
11. A
12. C
13. A
14. B
15. A
1. C
2. B
3. C
4. C
5. C
6. B
7. A
8. B
9. C
10. B
11. A
12. C
13. A
14. B
15. A
Jeremiah
1. C
2. B
3. C
4. C
5. C
6. B
7. A
8. B
9. C
10. B
11. A
12. C
13. A
14. B
15. A
1. C
2. B
3. C
4. C
5. C
6. B
7. A
8. B
9. C
10. B
11. A
12. C
13. A
14. B
15. A
Jeremiah
Quote from
Favour1122 on July 25, 2021, 9:05:40 PM
1 A
2 D
3 a
4 B
5 C
6 B
7 A
8 C
9 D
10 A
11 A
12 B
13 C
14 A
15 a
1 A
2 D
3 a
4 B
5 C
6 B
7 A
8 C
9 D
10 A
11 A
12 B
13 C
14 A
15 a
1. C
2. C
3.
4. C
5. C
6. B
7. A
8. C
9. C and D
10. A
11. D
12. C
13. A
14. D
15. B
dejt4u - Ayodeji Olowolagba
1. C
2. C
3.
4. C
5. C
6. B
7. A
8. C
9. C and D
10. A
11. D
12. C
13. A
14. D
15. B
dejt4u - Ayodeji Olowolagba
1. C
2. B
3. C
4. C
5. C
6. B
7. A
8. B
9. C
10. B
11. A
12. C
13. A
14. B
15. A
1. C
2. B
3. C
4. C
5. C
6. B
7. A
8. B
9. C
10. B
11. A
12. C
13. A
14. B
15. A
Jeremiah
Quote from
Ibekwe on July 25, 2021, 9:06:18 PM
1.c
2. C
3. D
4. A
5. C
6. B
7. A
8. D
9. A
10. C
11. D
12. C
13. A
14. D
15. A
1.c
2. C
3. D
4. A
5. C
6. B
7. A
8. D
9. A
10. C
11. D
12. C
13. A
14. D
15. A
1. C
2. B
3. C
4. C
5. C
6. B
7. A
8. B
9. C
10. B
11. A
12. C
13. A
14. B
15. A
1. C
2. B
3. C
4. C
5. C
6. B
7. A
8. B
9. C
10. B
11. A
12. C
13. A
14. B
15. A
Jeremiah
1c
2c
3 c
4b
5c
6d
7a
8b
9.c
10c
11d
12c
13a
14a
15d
1c
2c
3 c
4b
5c
6d
7a
8b
9.c
10c
11d
12c
13a
14a
15d
1a2b3c4d5a6d7c8a9d10c11d12a13b14d15a
1a2b3c4d5a6d7c8a9d10c11d12a13b14d15a
Quote from
Zino on July 25, 2021, 9:07:21 PM
1.c
2.c
3.a
4.c
5.c
6.b
7.a
8.b
9.c
10.c
11.d
12.c
13.a
14.a
15.a
1.c
2.c
3.a
4.c
5.c
6.b
7.a
8.b
9.c
10.c
11.d
12.c
13.a
14.a
15.a
