HTET Exam - Level 3 Pgt - Atoms And Molecules

The amount of water produced by the combustion of 16 g of methane is :

Which of the following in NMR spectrum tells us how many protons of each kind are there in a molecule ?

Number of molecules in 100 mL of each of $O_{2},$ $NH_{3}$ and $CO_{2}$ at STP are:

Consider the following ionization reactions with reference to Boron: $A(g)\rightarrow A^{+}(g)+e^{-} IE=A_{1}kJ/mol$ $A^{+}(g)\rightarrow A^{2+}(g)+e^{-} IE=A_{2}kJ/mol$ $A^{2+}(g)\rightarrow A^{3+}(g)+e^{-} IE=A_{3}kJ/mol$ then correct order of IE is:

The amount of water produced by the combustion of 16 g of methane is :

The oxidation state of each oxygen atom in $KO_{2}$ is:

A compound contains 4.07% hydrogen, 24.27% carbon and 71.65% chlorine. Its molar mass is 99 g, then its molecular formula is :

Dalton's atomic theory successfully explained : (i) Law of conservation of mass (ii) Law of constant proportion (iii) Law of radioactivity (iv) Law of multiple…

The compound in which cation is isoelectronic with anion is :

Which of the following is diamagnetic ?