Which of the following reaction is endothermic?
Which of the following reaction is endothermic? A. C(s) + O2(g) → CO2(g) B. CaO(s) + H2O(l) →…
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A catalyst speeds up the rate of chemical reaction by
A catalyst speeds up the rate of chemical reaction by A. taking part in the reaction B. increasing…
If a given quantity of electricity liberates 0.65g of Zn2+, what amount of Hg2+ would…
If a given quantity of electricity liberates 0.65g of Zn2+, what amount of Hg2+ would be liberated by…
NH3(g) + HCl(s) → NH4Cl(s) The entropy change in the system above is
NH3(g) + HCl(s) → NH4Cl(s) The entropy change in the system above is A. positive B. zero C.…
What is the IUPAC nomenclature of the compound NaCIO?
What is the IUPAC nomenclature of the compound NaCIO? A. sodium oxochlorate (I) B. sodium chloro (I) oxide…
In recharging a lead-acid accumulator, the reaction at the cathode can be represented as
In recharging a lead-acid accumulator, the reaction at the cathode can be represented as A. Pb2+(aq) + SO2-4(aq)…
The oxidation state of carbon in HCOOH is
The oxidation state of carbon in HCOOH is A. -1 B. +2 C. +3 D. zero Correct Answer:…
The basicity of CH3COOH is
The basicity of CH3COOH is A. 1 B. 2 C. 3 D. 4 Correct Answer: Option A Explanation
What is the pH of 0.001 mol dm-3 solution of sodium hydroxide
What is the pH of 0.001 mol dm-3 solution of sodium hydroxide A. 14 B. 13 C. 12…
The uncovered raw food that is sold along major roads is likely to contain some…
The uncovered raw food that is sold along major roads is likely to contain some amounts of A.…