3541: Which one of the following statements is not correct?
(a) The presence of NaCl increases the rate of setting of Plaster of Paris
(b) Gypsum is added to the cement to slow down its rate of setting
(c) All alkaline earth metals form hydrated salts
(d) Barium and Strontium are found free in nature
3542: To visit Tuticorin, Mangalore and Paradip, one does not require to go to:
(a) Tamil Nadu
(b) Kerala
(c) Karnataka
(d) Orissa
3543: Consider the following statements:
1. Most of Indias external debt is owed by governmental entities.
2. All of Indias external debt is denominated in US dollars.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
3544: Genetically modified "golden rice" has been engineered to meet human nutritional requirements. Which one of the following statements best qualifies golden rice ?
(a) Its modified genes cause the fortification of its grains with vitamin D grains have been fortified with genes to provide three times higher grain yield per
(b) Its modified genes cause the synthesis of all the nine essential amino acids
(c) The grains have been fortified with genes to provide three times higher grain yield per acre than other high yielding varieties
(d) Its grains contain pro-vitamin A which upon ingestion is converted to vitamin A in the human body
3545: MERCOSUR consists of group of countries of
(a) Africa
(b) Asia
(c) Latin America
(d) South East Asia