Q1. Consider the following statements regarding Ammonium nitrate and choose the correct options

  1. Ammonium Nitrate is a common chemical ingredient of agricultural fertilisers.
  2. It is used as an ingredient for the production of anaesthetic gasesand cold packs.
  3. It is also the main ingredient in the manufacture of commercial explosivesused in mining and construction.
  4. Pureammonium nitrate is an explosiveon its own.


  1. 1, 2 only
  2. 3, 4 only
  3. 1, 2 and 3 only
  4. all of the above

answer: c


Pure ammonium nitrate is not an explosive on its own. For Ammonium nitrate to be explosive a primary explosive or detonator like RDX or TNT is required.


Q2. Consider the following statements with respect to Pokkali rice” and choose the correct option:

  1. It is a variety of rice known for its saltwater tolerance.
  2. It has got a Geographical Indication Tag.
  3. It is extensively cultivated in Tamil Nadu.


  1. 1 only
  2. 1 and 2 only
  3. 1, 2 and 3
  4. 2 only


Answer: b


The pokkali variety is known for its saltwater tolerance.

 It is endemic to central Kerala.

 It is grown in coastal Alappuzha, Ernakulam and Thrissur districts.

It has been granted the Geographical Indication (GI) tag.

Pokkali is an ancient farming practice.

One season of rice farming is alternated with another season of prawn culture.

When the salinity is high, prawn farming takes over.


Q3. Which of these states have Geographical Indication Tag for Basmati Rice?

  1. Punjab
  2. Haryana
  3. Uttarakhand
  4. Madhya Pradesh


  1. 2 and 3 only
  2. 1, 2 and 3 only
  3. 3 and 4 only
  4. 2, 3 and 4 only


Answer: b


In May 2010, Geographical Indication status was given to basmati grown only in Punjab, Haryana, Delhi, Himachal Pradesh, Uttarakhand and parts of western Uttar Pradesh and a few districts of the Union Territory of Jammu & Kashmir.



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