FUTO Chemistry 2019/2020 - Model Past Questions

The pH of four solutions W, X, Y, Z are 4, 6, 8, 10, respectively, therefore

How many grams of HBr would exactly be required to react with 2g of propyne? (C = 12, H = 1, Br = 80)

The heat accompanying in the reaction represented by the equation H₂O_(l) --> H₂O_(g) is described as the heat of

The following are uses of sulphur except

An element will readily form an electrovalent compound if it electron configuration is

Which of the following is a physical change?

A basic postulate of the kinetic theory of gases is that the molecule of a gas moves in straight lines between collsions. This implies that

0.46g of ethanol when burned raised the temperature of 50g of water by 14.3K. Calculate the heat of combustion of ethanol.
(C = 12, O = 16, H = 1, specific heat capacity of water = 4.2J/g)

The atomic numbers of two element X and Y are 12 and 9 respectively, the bond in the compound formed between the atoms of these two element is

Which of the following is isotopes of hydrogen

The solubility of Na₃AsO₄ in ethanol is? (As = 75, Na = 23, O = 16, H =1)

What is the valence shell electron configuration of the element with atomic number 17?

Powdered marble reacts faster with hydrochloric acid solution than the granular form because the powdered form has

A solution of sodium trioxocarbonate(IV)contains 10.6g in 250cm³ of soluttion. Calculate the concentration of the solution.[$${Na_2CO_3 = 106.0}$$]

Which of the following metals exists as liquid at ordinary temperature?