In any chemical reaction, equilibrium is supposed to be establish when

Velocity of mutual reactions become equal

Mutual opposite reactions undergo

The temperature of mutual opposite reactions become equal

Concentration of reactants and resulting products are equal

Which of the following conditions represents an equilibrium

Few drops of water is present along with air in a balloon, temperature of balloon is constant

Freezing of ice in a open vessel, temperature of ice is constant

All the statements are correct for the equilibrium

Water is boiling in an open vessel over stove, temperature of water is constant

In chemical reaction A↔B, the system will be known in equilibrium when

The rate of change of A to B and B to A on both the sides are same

In chemical reaction A↔B, the system will be known in equilibrium when

The rate of change of A to B and B to A on both the sides are same

Which of the following statement is correct with respect to the property of elements with an increase in atomic number in the carbon family (group 4)

Stability of +2 oxidation state increase

All elements in 3rd period have

3 electrons less than the octet

An element of atomic weight 40 has 2, 8, 8, 2 as the electronic configuration. Which one of the following statements regarding this element is correct

It belongs to V group of the periodic table

It belongs to 5th period of the periodic table

It belongs to III group of the periodic table

Fluorine, chlorine, bromine and iodine are placed in the same group (17) of the periodic table, because

They have 7 electrons in the outermost shell of their atom

Their atoms are generally univalent

Between HF, HCl, HBr and HI, HF has the highest ionic character because

In HF, electronegativity difference is highest

It belongs to V group of the periodic table

F has the highest electron affinity

Atomic orbitals of H and F have almost similar energy

Atomic orbitals of H and Cl have almost similar energy

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Authored by Баха Лучший

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Molecular mass of CuSO4 x 5H2O is

200 g/mole

160 g/mole

250 g/mole

500 g/mole

90 g/mole

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the correct name of PCl5

nitrogen monooxide

phosphorus trichloride

dinitrogen tetraoxide

boron trichloride

phosphorus pentachloride

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the correct name of PCl3

phosphorus pentachloride

boron trichloride

nitrogen monooxide

dinitrogen tetraoxide

phosphorus trichloride

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the correct name of BCl3

phosphorus trichloride

nitrogen monooxide

boron trichloride

phosphorus pentachloride

dinitrogen tetraoxide

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the correct name of N2O4

boron trichloride

nitrogen monooxide

dinitrogen tetraoxide

phosphorus trichloride

phosphorus pentachloride

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the correct name of LiCl

boron trichloride

sodium chloride

calcium fluoride

magnesium bromide

lithium chloride

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the correct name of NaCl

lithium chloride

magnesium bromide

boron trichloride

calcium fluoride

sodium chloride

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Baqytzhan.hub

Molecular mass of CuSO4 x 5H2O is

Find the correct name of PCl5

Find the correct name of PCl3

Find the correct name of BCl3

Find the correct name of N2O4

Find the correct name of LiCl

Find the correct name of NaCl

Find the correct name of MgBr2

Find the correct name of CaF2

In any chemical reaction, equilibrium is supposed to be establish when

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