What is Downward Displacement of Water?
Answer Posted / devesh asrani
Downward displacement of water is a laboratory method of
preparation of hydrogen which is present dissolved in water.
Zinc granules are placed in a flask with two holes at the
top. Thistle funnel is passed through one hole and a
delivery tube through another. The delivery tube is attached
to a bee hive shelf in a shelf under water.Dilute
hydrochloric acid is added through the thistle funnel. small
bubbles are seen. This is how hydrogen gas is collected
Zn+HCl......ZnCl2+H2
| Is This Answer Correct ? | 27 Yes | 38 No |
Post New Answer View All Answers
what kind of question can be asked in interview for polarimeter related ?
Find out how to make artifacts the maxwell boltzmann theory of gases . ps. I don't speak English that well
What is the requirement to give RFlow when using RID detector?
What is the brigg's raucher reaction?
Write the each half cell reaction and also net cell reaction for a cell
why athanol-water mixtuere have maximum viscocity in wt% 40?
what is the difference between elctrefining and electrolysis?
a sample of gas occupies a volume of {450.0 ml}at {740 mm Hg}and[16C]determine the volume of this same sample at [760 mm Hg]and [37c]?
what kind of question can be asked in interview for UV- VISIBLE & give me answer ?
The rate constant for the second order reaction is 0.54/M.s at 300oC. How long (in sec) would it take for the concentration of NO2 to decrease from 0.62M to 0.28 M? 2NO2(g) 2 NO(g) + O2(g)
Normally entropy is expressed as q/T. But, work and heat have same unit. Why can't it be replaced by work?
4 Identify the substance oxidized, reduced, oxidizing agent and reducing agent for the following reactions
The use of vermilion on rubric of the Tartar Relation is confirmed by the presence of three lines attributed to HgS. Why should this diatomic have more than one vibrational line?
what does 50 denote in dowex 50 ????
Sr-90, a radioactive isotope, is a major product of an atomic bomb explosion. It has a half life of 28.1 year. Calculate the first order rate constant for this nuclear decay and the fraction of 90Sr that remains after 10 half lives?