What kind of sound produce by hydrogen gas?

Diana Nair answered  •  33 minutes ago
If any reaction happens and we want to know whether hydrogen is evolved or not by bringing a burning splinter towards the place where the reaction happens. If hydrogen is evolved in that reaction the burning splinter will burn with a pop sound.

view all 13 answers

The nth term of the AP 9, 13, 17, 21, 25, ………….. is:​
  • a)
    4n-5
  • b)
    5n+3
  • c)
    4n+5
  • d)
    3n+2
Correct answer is option 'C'. Can you explain this answer?

Diana Nair answered  •  36 minutes ago
First Term (a) = 9
Common differences ( d) = 17-13 = 4
an = a + ( n -1)d
an = 9 +(n -1)4
an = 9 + 4n - 4
an = 4n + 5
So option C is correct.

view all 2 answers

Who invented the first pc?

Boyarevula Varsha answered  •  1 hour ago
Ed Robert is the inventor of PC And don't forget to upvote my answers please

view all 23 answers

Who comes first, egg or hen?

Boyarevula Varsha answered  •  1 hour ago
Hen came first because through the egg coming and then the egg is warmed and then another hen is born maiqqnly the answer is hen and scientists also declared in 2019 or 20 And don't forget to upvote my answers please

view all 43 answers

Sexual reproduction is more advanced than asexual reproduction ? Justify the statement?

Sonika Attitdejaatni answered  •  1 hour ago
The sexual mode of reproduction is considered to be better than the asexual mode of reproduction. This is because, in the asexual mode of reproduction, the only single parents give rise to another offspring which is exactly similar to the parent as it passes its genetic material to offspring. So there are no chances of including variation in progeny. In the sexual mode of reproduction,  there... more

Can anyone can motivate me for study?

Jagriti Pandey answered  •  3 hours ago
Yrr bst option....Astha ,sanskar,aadi channels kholke baith jaa...unshe acha motivation koi nhii kar sakta....hihaihe

Which one of Fe, Al, Cu, Zn is the least reactive metal?
  • a)
    Cu
  • b)
    Al
  • c)
    Fe
  • d)
    Zn
Correct answer is option 'A'. Can you explain this answer?

Diana Nair answered  •  3 hours ago
Copper has the least reactivity because copper is placed below the reactivity series. Aluminum , Zinc, and Iron are placed above the reactivity series.

view all 8 answers

What is the essence of hybridization?

mehak jaju answered  •  9 hours ago
The essence of hybridization is the fusion during fertilization of genotypically different sex cells and the development from the zygote of a new organism that combines the hereditary disposition of the parents.in biology"""

Orbital hybridization (or hybridization) is the concept of mixing atomic orbitals into new hybrid orbitals with different energies, shapes, etc., than the component atomic orbitals. Hybrid orbitals are very useful in the explanation of molecular geometry and atomic bonding properties and are symmetrically disposed in space. in chemistry"""

How you check presence of co2 in solution ?

Shalu answered  •  12 hours ago
The most effective way to test for CO2 is to bubble the gas through "limewater", a diluted solution of calcium hydroxide (slaked lime). When you bubble carbon dioxide through the solution, it forms a solid precipitate of calcium carbonate – chalk or limestone.

view all 5 answers

Fetching relevant content for you