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- Question
Alum is used
Options- A. as an analgesic
- B. in the purification of water
- C. as a fertilizer
- D. as a disinfectant
- Correct Answer
- in the purification of water
ExplanationAlum is a common alum, potassium aluminum sulphate which makes colloidally suspended impurities in water such as clay to settle down.
- 1. The reaction between compounds and oxygen is called
Options- A. oxidation
- B. hydrolysis
- C. carbonation
- D. solution Discuss
- 2. What is the predominant type of Indian agriculture?
Options- A. Commercial agriculture
- B. Extensive agriculture
- C. plantation agriculture
- D. subsistence agriculture Discuss
- 3. A dual-layer DVD is valued because it:
Options- A. Can hold more data
- B. Contains a backup of the data stored
- C. Uses a second layer to offer a speed increase
- D. Creates alternative sound tracks Discuss
- 4. Badrinath is situated on the bank of river
Options- A. Ganga
- B. Yamuna
- C. Alaknanda
- D. Saraswathi Discuss
- 5. The time interval from when the given star passes directly overhead to when it next passed directly overhead, is defined as
Options- A. one sidereal day
- B. one solar day
- C. both the terms are similar, so any of these may be used
- D. None of the above Discuss
- 6. Plants that grow in saline water are called
Options- A. halophytes
- B. hydrophytes
- C. mesophytes
- D. thallophytes Discuss
- 7. The moon's volume is about ____ that of earth.
Options- A. 1/40 th
- B. 1/50 th
- C. 1/60 th
- D. 1/20 th Discuss
- 8. Manav Seva Award has been instituted in the memory of
Options- A. Rajiv Gandhi
- B. Dr. Rajendra Prasad
- C. Indira Gandhi
- D. Acharya Discuss
- 9. In which decade was the Internet first implemented?
Options- A. 1940s
- B. 1950s
- C. 1960s
- D. 1980s Discuss
- 10. Modem stands for...
Options- A. Modulator Demodulater
- B. Monetary Devaluation Exchange Mechanism
- C. Memory Demagnetization
- D. Monetary Demarkation Discuss
More questions
Correct Answer: oxidation
Correct Answer: subsistence agriculture
Correct Answer: Can hold more data
Correct Answer: Alaknanda
Correct Answer: one sidereal day
Correct Answer: halophytes
Correct Answer: 1/50 th
Correct Answer: Rajiv Gandhi
Correct Answer: 1960s
Explanation:
The first message ever sent over what is now called the Internet took place at 10:30PM on October 29, 1969. Back then, the Department of Defense called it ARPAnet (Advanced Research Projects Agency network).
Correct Answer: Modulator Demodulater
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