Discussion
Home ‣ General Knowledge ‣ Chemistry Comments
- Question
Crystallisation is an example of?
Options- A. Physical Change
- B. Chemical Change
- C. Chemical Reaction
- D. Galvanisation
- Correct Answer
- Physical Change
- 1. Which of the following is used as non stick coating for cooking utensils?
Options- A. Perspex
- B. Styrofoam
- C. Polystyrene
- D. Teflon Discuss
- 2. Atomic explosion is triggered by
Options- A. thermo nuclear reaction
- B. chemical reaction
- C. controlled chain reaction
- D. uncontrolled chain reaction Discuss
- 3. Terylene is a condensation polymer of ethylene glycol and which acid?
Options- A. Benzoic Acid
- B. Salicylic acid
- C. Phthalic acid
- D. Terephthalic acid Discuss
- 4. The most serious air pollutant causing health hazard is
Options- A. Sulphur dioxide
- B. Carbon monoxide
- C. Ozone
- D. Nitrogen oxide Discuss
- 5. Why is Carbon Monoxide a pollutant ?
Options- A. Reacts with haemoglobin
- B. Makes nervous system inactive
- C. It reacts with Oxygen
- D. It inhibits glycolysis Discuss
- 6. Vinegar and Baking Soda together produce ____________.
Options- A. Copper
- B. Carbon Dioxide
- C. Copper Sulphate
- D. Magnesium Oxide Discuss
- 7. The salt concentration (measured as salinity in parts per thousand), is _______ % in sea.
Options- A. 10-20
- B. 30-35
- C. 40-50
- D. 60-70 Discuss
- 8. What is the process of rust forming on iron called?
Options- A. Rusting
- B. Crystallisation
- C. Shovel
- D. Spade Discuss
- 9. Which base is present in soap?
Options- A. Sodium hydroxide
- B. Silicon dioxide
- C. Calcium hydroxide
- D. Ammonium hydroxide Discuss
- 10. Which of the following statement(s) is/are CORRECT? I. Acids are sour in taste and generate H+ ions. II. Acids are sour in taste and generate OH? ions. III. Bases are bitter intaste and generate OH? ions.
Options- A. Only I and III
- B. Only I and II
- C. Only II and III
- D. All I, II and III Discuss
Chemistry problems
Search Results
Correct Answer: Teflon
Correct Answer: uncontrolled chain reaction
Correct Answer: Terephthalic acid
Correct Answer: Sulphur dioxide
Correct Answer: Reacts with haemoglobin
Correct Answer: Carbon Dioxide
Correct Answer: 30-35
Correct Answer: Rusting
Correct Answer: Sodium hydroxide
Correct Answer: Only I and III
Comments
There are no comments.More in General Knowledge:
Programming
Copyright ©CuriousTab. All rights reserved.