Chemistry Test ...

Cooking gas (LPG) mainly consists of:

Calculate the heat required to make \(6.4 {Kg} {~CaC}_{2}\) from \({CaO}({s})\) and \({C}({s})\) from the reaction:

\({CaO}({s})+3 {C}({s}) \rightarrow\) \({CaC}_{2}({~s})+{CO}({g})\)

given that \(\Delta_{f} \mathrm{H^o}\left(\mathrm{CaC}_{2}\right)=-14.2\) kcal. \(\Delta \mathrm{f} \mathrm{H}^{\circ}(\mathrm{CO})=-26.4\) kcal.

The statement "atom is indivisible" was proposed by:

Which of the following statements is not correct about the characteristics of cathode rays?

Which of the following statements is true regarding the typical element belonging to the 1st group of p-block elements?

In the following reaction

\(\mathrm{HCO}_{3}^{-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{CO}_{3}^{2-}+\mathrm{H}_{3} \mathrm{O}^{+}\)

Which two substances are Bronsted base?

Which among the following is an example of a saturated carbon compound?

What is the mass (in grams) of \(3\) moles of \(N\) atom?

Which one of the following order represents the correct sequence of the increasing basic nature of the given oxides ?

Classification means ____ of things.