RRB General knowledge Science questions answers - 21 August 2014

1. Which of the following statements is incorrect?
[A]Acetone is used as a solvent
[B]All alkalis don't dissolve in water
[C]A mixture of a metal and a non-metal can also be an alloy
[D]Graphite is an example of allotropy


2. Which among the following is used as an antidote?
[A]Nicotine
[B]Activated Charcoal
[C]Paracetamol
[D]Thiamine


3. Which among the following will undergo a chemical reaction depending on the pH of the solution?
[A]Zinc Oxide
[B]Calcium Oxide
[C]Ferric Oxide
[D]Ferrous Oxide


4. Which among the following is not a beverage plant?
[A]Camellia sinensis
[B]Coffea Arabica 
[C]Zingiber officinale
[D]Alonsoa grandiflora


5. Who among the following were awarded Nobel Prize in 1958 for One Gene One Enzyme Concept? 
[A]Landsteiner & Weiner
[B]George Beadle and Edward Tatum
[C]Lederberg and Edward Tatum
[D]Jacob and Wollman