List of top Chemistry Questions

Schrodinger wave equation, for a particle in a one dimension box is
$ {Pb_3 O_4 + 4HNO_3 -> 2Pb(NO_3)_2 + PbO_2 + 2H_2O }$ Which is true about the lead ions in $ {Pb_3O_4}$ ?
Orlon has monomeric unit
On heating potassium permanganate, one of the following compound is not obtained :
$ { MSO_4 ->[NH_4OH] $\underset{\text{white}}{ {X}}$\downarrow ->[NH_4OH][exess] Y ->[H_2S] Z \downarrow}$ Here $M$ and $Z$ are
Molecular structure of $ XeO_3 $ and $ XeOF_4 $ respectively are
Mica is chemically
Match the flame colours of the alkaline earth metal salts in the Bunsen burner.
What is the role of bithional in toilet soaps?
$\Delta G^{\circ}$ versus $T$ plot in the Ellingham's diagram slopes downward for the reaction
Among the metals $Fe , Zn , Pb , Ag$ and $Pt$, which do not give a metal nitrate on treatment with concentrated $HNO _{3}$ ?
The shapes of $ SF_{4} $ and $ XeF_{2} $ respectively are
Arrange the given set of compounds in order of increasing boiling points. I. $1$-chloropropane II. Iso-propyl chloride III. $1$-chlorobutane
The order of reactivity of halides towards $S_N1$ mechanism is
Which of the following is an amorphous solid?
Which of the following is not an artificial sweetener?
Which one of the following compounds shows cis-trans isomerism?
Which of the following formulae is mismatched?
What is the percentage of free space in $fcc$ and $bcc$?
Tincture of iodine is
The yellow colour in $NaCl$ crystals is due to
The standard electrode potential for Daniell cell is $1.1\, volt$. What is the standard Gibbs energy for the reaction?
The species $ {Ar, K^+}$ and $ {Ca^{2+}}$ contain the same number of electrons. In which order do their radii increase?
The polymer obtained by the interaction of ethylene glycol and terephthalic acid is
The heat of combustion of carbon to $ {CO_2}$ is $ {- 393.5 \, kJ/mol}$. The heat released upon formation of 35.2 g of $ {CO_2}$ from carbon and oxygen gas is: