Class 11th

Volume strength of original peroxide solution is 16.8 V. Determine the molarity and normality of peroxide solution respectively:

The compound 'A' in the following Reaction is:
A →(1) O?, (2) Zn/H?O→ B + C
B →dil. KOH→ CH?-CH(OH)-CH?-CHO →HCN→ D
C →conc. KOH→ Benzyl alcohol + salt of Benzoic Acid
D →H?O?, Δ→ E

Which of the following statement is incorrect statement for photochemical smog?

Consider the following reaction:
(A substituted phenol reacts with H? and CrO?Cl to produce product 'P'.)
The product 'P' gives positive acetyl chloride test. This is because of the presence of which of these –OH group(s)?

Maximum number of different photons emitted when only two H atoms are placed in a container and each is present in 3rd excited state:

A container contains O?, He and SO? gases such that mass of SO? is double the mass of O? and mass of He is half the mass of O? gas. The sum of mole fraction of all the gases is:

Among the following statements, identify the correct set of statements:
(A) Size of Li is smaller than Mg
(B) Both Li and Mg form covalent compounds readily
(C) Both Li and Mg react with nitrogen and form nitride
(D) Oxides of Li and Mg do not combine with excess oxygen to give superoxides

Identify the correct option from below:

How is latent heat related to change of state?

When phase changes happen, why do the plateaus of temperature show?

Value of ${\displaystyle \underset{0}{\overset{1.5}{\int }}\left[x^2\right]}dx$  is equals to (where [.] denotes greatest integer function)