311: What is the pH level of blood of normal person?
(a) 4.5-4.5
(b) 6.45-6.55
(c) 7.35-7.45
(d) 8.25-8.35
312: Recently, the manuscripts of which one of the following have been included in the UNESCO's Memory of World Register?
(a) Abhidhamma Pitaka
(b) Ramayana
(c) Rig-Veda
(d) Mahabharta
313: Most of the explosions in mines occur due to the mixing of
(a) hydrogen with oxygen
(b) oxygen with acetylene
(c) methane with air
(d) carbon dioxide with ethane
314: Which of the following international events influenced the course of the national movement in India before the advent of Mahatma Gandhi ?
I. Italian-Abyssinian War, 1898
II. Boxer Movement in China
III. Revolutionary Movement in Ireland
IV. Victory of Japan in the Russo-Japanese War
Choose the correct answer from the code given below.
Codes:
(a) I, II and III only
(b) I, II and IV only
(c) III and IV only
(d) I, II, III and IV
315: Khetri, Kolar, Sindri and Jharia are associated with:
(a) Copper, gold, fertilisers and coal
(b) Copper, gold, coal and iron
(c) Copper, gold, coal and gypsum
(d) Iron, gold, coal and copper