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- Question
Which of the following is a property of sodium hydroxide?
Options- A. It is insoluble in ether and other Non-polar solvents
- B. It is slowly soluble in water
- C. It has an odor of rotten egg smell
- D. All the above
- Correct Answer
- It is insoluble in ether and other Non-polar solvents
ExplanationSodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na+ and hydroxide anions OH?.
Properties:
1. It is highly soluble in water, and readily absorbs moisture and carbon dioxide from the air.
2. NaOH is insoluble in ether and other non-polar solvents.
3. It is an odorless compound.
Uses:
Sodium hydroxide is used in many industries: in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents, and as a drain cleaner.
- 1. In the United States the television broadcast standard is...?
Options- A. PAL
- B. NTSC
- C. SECAM
- D. RGB Discuss
- 2. Where is the headquarters of Intel located?
Options- A. Redmond, Washington
- B. Tucson, Arizona
- C. Santa Clara, California
- D. Richmond, Virginia Discuss
- 3. Where was the yo-yo invented?
Options- A. France
- B. United States
- C. Philippines
- D. England Discuss
- 4. Which of the following is concerned with the study of characteristics, origin and development of land forms?
Options- A. Ecology
- B. Geography
- C. Geology
- D. Geomorphology Discuss
- 5. Who was the first Indian batsman to hit a century on Test debut against England at England's home?
Options- A. Sachin Tendulkar
- B. Abbas Ali Baig
- C. Kapil Dev
- D. Wassim Jaffer Discuss
- 6. When did Sachin Tendulkar make his Test debut?
Options- A. 1986
- B. 1991
- C. 1990
- D. 1989 Discuss
- 7. The first electric train of India 'Deccan Queen' was run between
Options- A. Howrah and Delhi
- B. Bombay and Surat
- C. Kalyan and Pune
- D. New Delhi and Madras Discuss
- 8. Electric current is measure by
Options- A. commutator
- B. anemometer
- C. ammeter
- D. voltmeter Discuss
- 9. Who developed the idea of Crop Rotation?
Options- A. Potato Peterson
- B. Turnip Townsend
- C. Cabbage Carlson
- D. Swede Svenson Discuss
- 10. The major geological events of the Palaeozoic era include
Options- A. Caledonian mountain rise, life comes ashore
- B. Appalachians and Central European mountains come up
- C. both (a) and (b)
- D. None of the above Discuss
More questions
Correct Answer: NTSC
Explanation:
PAL and SECAM are standards used in other countries. RGB stands for red, green, and blue - the colors of light used to create an image in a color tv set and is often used as a format name for computer monitors.
Correct Answer: Santa Clara, California
Correct Answer: Philippines
Explanation:
The yo-yo was first used by hunters as weapons. They were wooden disks on strings. In the 1920s, a man from the U.S. named Donald Duncan made the yo-yo into a toy after he visited the Philippines.
Correct Answer: Geomorphology
Correct Answer: Abbas Ali Baig
Explanation:
He had scored 12,367 runs in 235 matches in First Class Cricket with his highest being 224 not out.
Correct Answer: 1989
Explanation:
It was against Pakistan - the now famous saying -" go home and drink milk" was made against him!
Correct Answer: Kalyan and Pune
Correct Answer: ammeter
Correct Answer: Turnip Townsend
Explanation:
Viscount Charles 'Turnip' Townsend developed this revolutionary concept.
Correct Answer: both (a) and (b)
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