Q. Burning of hydrogen

View solution

Q. Conversion of solid Ammonium Nitrate (NH₄NO₃(s)) into aqueous Ammonium Nitrate (NH₄NO₃(aq)) is an example of

View solution

Q. Energy conservation mechanisms do not include

View solution

Q. Burning of methane (CH₄) gives off heat and

View solution

Q. Burning of glucose produces heat and

View solution

Q. Endothermic reactions take place when

View solution

Q. Water with lesser oxygen is known to

View solution

Q. Energy changes in a chemical reaction can be represented through

View solution

Q. In ionic crystals, heat energy is taken in to

View solution

Q. Chemical reaction with oxygen is called

View solution

Q. Reaction of Carbon(s) with O₂(g) is an example of

View solution

Q. Methane (CH₄) is an excellent fuel because

View solution

Q. Non-renewable fossil fuels include

View solution

Q. Upon absorbing heat energy, ionic crystal results into

View solution

Q. Benefits of using small cells could be

View solution

Q. An electrochemical cell in which fuel gives up electrons at one electrode and oxygen gain electrons at another electrode is known as

View solution

Q. In 1748, the first time the word used in connection with electricity was

View solution

Q. By passing the electricity through electrochemical cells, they can be

View solution

Q. The advantage of fuel cell over petrol is its only product

View solution

Q. The estimated range of voltage of ordinary dry cells is

View solution