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The wavelength of an electron and a neutron will become equal when the velocity of the electron is $x$ times the velocity of neutron. The value of $x$ is (Nearest Integer)(Mass of electron is $9.1 \times 10^{-31} kg$ and mass of neutron is $1.6 \times 10^{-27}\,kg$ )
→The mass of $N_2F_4$ produced by the reaction of $2.0\,\,mole$ of $NH_3$ and $8.0\,\, mole$ of $F_2$ is $0.5\,\,mole.$ What is the per cent yield ?
→$2NH_3 + 5F_2\,\,\to \,\, N_2F_4 + 6HF$
The equilibrium constant of the reaction ${H_2}_{(g)} + {I_2}_{(g)}$ $\rightleftharpoons$ $2HI_{(g)}$ is $64$. If the volume of the container is reduced to one fourth of its original volume, the value of the equilibrium constant will be
→A reaction is $A + B \to C + D$. Initially we start with equal concentration of $A$ and $B$. At equilibrium we find the moles of $C$ is two times of $A$. What is the equilibrium constant of the reaction
→The oxidation number of $C$ in $C{O_2}$ is
→$PC{l_5} + {P_4}{O_{10}}\xrightarrow{\Delta }$ oxygen containing compound $(X)$ .
→How many moles of an oxy acid are formed on hydrolysis of $1$ mole $(X)$ .
The elevation in boiling point for $1$ molal solution of non-volatile solute $A$ is $3\,K$. The depression in freezing point for $2$ molal solution of $A$ in the same solvent is $6\,K$. The ratio of $K _{ b }$ and $K _{ f }$ i.e., $K _{ b } / K _{ f }$ is $1: X$. The value of $X$ is [nearest integer]
→Basicity of $H_3BO_3$ is :
→For the given first order reaction $\text { A } \rightarrow \text { B }$ the half life of the reaction is $0.3010\,min$. The ratio of the initial concentration of reactant to the concentration of reactant at time $2.0\,min$ will be equal to $........$ (Nearest integer)
→Number of hydrogen atoms per molecule of a hydrocarbon A having $85.8 \%$ carbon is $...............$.(Given : Molar mass of $A =84\,g\,mol ^{-1}$ )
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