List of top Chemistry Questions

Which of the following fluorides of oxygen do not exist?
What happens when CU metal is immersed in ferrous sulphate
Which is the structure of glutaric acid?
Products when H2SO4 is reacted with sucrose
What gives CO and CO2 when they react with H2SO4
RCHO is converted into RCH3 using zinc amalgam and concentrated HCl this reduction is called as
Density change in Schottky and Frenkel defect
What is glucose
What are isoelectronic species
Disproportion reaction is ___
photoelectric effect is observed?
The order of their electronegativities?
What is degree of dissociation of 0.05 N NH3 if pKa is 4.75 and pH is 11
Which alkali give red colour on flame test
The number of spectral lines that are possible when electrons in fourth energy level in different hydrogen atoms return to ground state.
Decreasing order of the field strength of the following ligands will be: CO, CN-, Cl-, H2O
25 mL of 3 M HCl were added to 75 mL of 0.05 M HCl. The molarity of HCl in the resulting solution is approximately
Chlorine is prepared in the laboratory by treating manganese dioxide \((MnO_2)\) with aqueous hydrochloric acid according to the reaction
\(4 HCl (aq) + MnO_2(s) → 2H_2O (l) + MnCl_2(aq) + Cl_2 (g)\).
How many grams of HCl react with 5.0 g of manganese dioxide?
Which one of the following statements is incorrect in relation to ionization enthalpy?
Would you expect the first ionization enthalpies for two isotopes of the same element to be the same or different? Justify your answer.
Which of the following species is strongest Lewis base ?
(i) Write the electronic configurations of the following ions: (a) H– (b) Na+ (c) O2– (d) F– 
(ii) What are the atomic numbers of elements whose outermost electrons are represented by (a) 3s1 (b) 2p3 and (c) 3p5? 
(iii) Which atoms are indicated by the following configurations? (a) [He] 2s1 (b) [Ne] 3s2 3p3 (c) [Ar] 4s2 3d1.
Chlorine cannot displace
The right option for the number of tetrahedral and octahedral voids in the hexagonal primitive unit cells are :

The compound which shows metamerism is