Question

What is Parhelion?
what happens when with equation
a) Ethanol is burnt in presence of air?
b) ethanol is heated with excess concentrated
Sulphuric acid at 443 Kelvin?
c)a piece of sodium is dropped in ethanol ?

The Crystal of compound A on heating in air get converted into a white powder its solution in water gives blue colour with red litmus it is used to remove permanent hardness from
water ?
a)identity find the substance ?
b) chemical formula of its crystalline form ?
c)give any two uses of that substance ?

what is pH value ?

why is hydrochloric acid is stronger than acetic acid ?

what is Presbyopia?

what is myopia?


name the chamber in the hardware oxygenated blood from lungs is collected?

name the largest muscle in the human body ?

name the blood vessel that carry blood from heart to the lungs ?

why is sodium cytrate is mixed in the blood that is kept in the blood bank ?

non touching chemical ?

who is the father of chemistry ?

correct answer will be marked as brainliest

please help me

Answer 1

plzz ask ur questions one by one it's going diffcult for me if ask questions one by one u get answer of it questions

Answer 2

plz ask que one by one it's difficult for answering