. An element A react with water to form a compound B and nascent oxygen is released which is used to bleach. Compound B is has a pH around 1-2 and can be used to prepare dihydrogen gas on reaction with Zn and compound C. Identify A, B and C also write Chemical Equation for the reactions involved.
Answers
Answer:
Consider the following statements, establish the cause and effect relationship and choose the correct answer from the given options
I. In the post 1981, the growth rate of country’s population though remained high, has started slowing down gradually.
II. A downward trend of crude birth rate is held responsible for such a
population growth. Options-
a. Only statement I is true
b. Only statement II is true
c. Both the statements are true and statement II presents the valid cause for statement I
Q7 Q8
d. Both the statement are irrelevant
Answer:
Water is the most abundant compound of hydrogen found on earth. ... Passing steam over coke (an impure form of elemental carbon) at 1000 °C ... It is possible to use hydrogen as a nonpolluting fuel. The reaction of hydrogen with oxygen is a very exothermic reaction, releasing 286 kJ of energy per mole of water formed.
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