CuS is not white in colour. It is blue colour. • KMnO(4) exists as dark purple black prismatic crystals. • Basic copper carbonate is CuCO(3). Cu(OH)(2) • On strong heating, potassium dichromate decomposes with evolution of oxygen.
Which of the following statements regarding buffers are true? 1) Buffers prevent rapid, drastic changes in the pH of body fluids. 2) Buffers systems are designed to stabilize pH within a few hours. 3) Strong acids lower pH more than weak acids because ...
Which of the statements is correct concerning the relative stabilities of the two conformations 1 and 2, shown below: (Image) Which of the statements is correct concerning the relative stabilities of Which of the following statements is not correct about cathode rays? (a)...
Thus contrary to the virologists’s opinion, my hope, that in hindsight has proved to be correct, was that ozonetherapy would slowly reverse the excessive oxidation and normalize the redox state, thus limiting the viral replication. The trial accrued ten patients, went on for about 7 months ...
The acidic solution is find everywhere. Answer and Explanation: Correct Answer: Option 1 - NO2 is correct answer because when NO2 react with water lead to formation of nitrous acid(HNO2) and nitric acid(HNO3). In...Become a member and unl...
Which of the following statements regarding buffers are true? 1) Buffers prevent rapid, drastic changes in the pH of body fluids. 2) Buffers systems are designed to stabilize pH within a few ...
Strong electrolyte, weak electrolyte, non-electrolyte: Electrolytes are compounds that are capable of conducting electricity when in aqueous or molten state. This is possible due to the dissociated ions - positively and negatively charged- dispersed in the solution. Strong elec...
Which of the following statements is correct? (a) Only one weak acid is present in the list. (b) Two (and only two) weak acids are present in the list. (c) Three (and onIdentify whether it is a strong electrolyte, a weak electrolyte, or nonelec...
2NO3-(aq) + 8H+(aq) + 3Cu(s) --> 3Cu2+(aq) + 2NO(g) + 4H2O(l) Before the reaction? After the reaction? 2) What is the Which statement regarding this redox reaction is correct? Cu + Ag+ arrow Cu2+ + ...
The optical transmission regarding the undoped ZnO sample was slightly improved for the low lanthanum concentrations. The transparency of La2O3-ZnO nanocomposites decreased with lanthanum concentration, possibly because of the increased scattering. The highest doping ratio of La2O3 (i.e., S7) has ...