326: Microbial fuel cells are considered a source of sustainable energy, Why ?
1. They use living organisms as catalysts to generate electricity from certain substrates.
2. They use a variety of inorganic materials as substrates.
3. They can be installed in waste water treatment plants to cleanse water and produce electricity.
Which of the Statements given above is/are correct?
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
327: Which party was in power in U.K. when India became independent:
(a) Labour
(b) Conservative
(c) Liberal
(d) None of these
328: With whose permission did the English set up their first factory in Surat?
(a) Akbar
(b) Jahangir
(c) Shahjahan
(d) Aurangzeb
329: What is the Universal Product Code (UPC) adopted for?
(a) Fire safety code in buildings
(b) Earthquake-resistance building code
(c) Bar code
(d) Against adulteration in eatables
330: Consider the following statements with reference to the Periodic Table of chemical elements :
I. lonisation potential gradually decreases along a period.
II. In a group of elements, electron affinity decreases as the atomic weight increases.
III. In a given period, electronegativity decreases as the atomic number increases.
Which of these statement(s) is/are correct ?
(a) I only
(b) II only
(c) I and III
(d) II and III