A proton and a Li³⁺ nucleus are accelerated by the same potential. If ${\lambda }_{Li}and{\lambda }_P$  denote the de Brogle wavelength of Li³⁺ and proton respectively, then the value of $\frac{{\lambda }_{Li}}{{\lambda }_P}isx*10^{-1}.$  The value of x is_________ (Rounded off to the nearest integer)           [Mass of Li³⁺ = 8.3 mass of proton]

The standard enthalpy of combustion at 25°C of hydrogen, cyclohexene (C₆H₁₀) and cyclohexane (C₆H₁₂) are –241, –3800 and –3920 kJ mol–1 respectively. Calculate the standard enthalpy of hydrogenation of cyclohexene.

HCP crystal is made of A ions and B ions are arranged in 2/3rd of octahedral voids. The simplest formula of compound is :-

Enthalpy of neutralisation of CH₃COOH by NaOH is – 50.6 kJ/mol and the heat of neutralisation of a strong acid with NaOH is – 55.9 kJ/mol. The value of ΔH for the ionisation of CH₃COOH is :

Kindly Consider following table–

<!-- [if !supportLists]-->(i)    <!--[endif]-->The correct match is–

 

 

  

Which of the following is a carbonate ore ?