Atomic size decreases?

5 years ago

A. across a period from left to right B. across a period from right to left C. diagonally down the…

Sulphur has an oxidation number of +4 in?

5 years ago

A. H2S B. H2SO4 C. MgSO4 D. Na2SO3 E. S03 Correct Answer: Option D - Na2SO3

If the volume of a gas at 35°C is 60cm³, what would be its volume in cm³ at 273k?

5 years ago

A. 39.03 B. 46.81 C. 53.18 D. 67.69 E. 76.92 Correct Answer: Option C - 53.18

What is the molar mass of the compound below?

5 years ago

A. 45 B. 61 C. 122 D. 123 E. 244 Correct Answer: Option C - 122

In the electrolysis of dilute tetraoxosulphate (VI) acid using platinum electrodes, the products obtained at the anode are cathode respectively are

5 years ago

A. hydrogen, oxygen B. Hydrogen, tetraoxosulphate (VI) ion C. oxygen, hydrogen D. sulphur, hydrogen E. sulphur, oxygen Correct Answer: Option…

A neon atom is chemically nonreactive because?

5 years ago

A. the electrons at the outermost shell is partially filled B. the number of protons equals the number of electrons…

Which of these compounds has the greatest ionic character?

5 years ago

A. AlF3 B. BF2 C. CF4 D. CsF E. NaF Correct Answer: Option E - NaF

Which of the following compounds will undergo thermal dissociation readily?

5 years ago

A. AgCl B. CaCO3 C. K2SO4 D. NaOH E. NH4CI Correct Answer: Option E - NH4CI

The rate of a reaction usually increases with increase in the concentration of reactants because the?

5 years ago

A. distance between particles of the reactants increases B. frequency of collision of particles is lower C. particles of the…

The reaction of an alkanol with alkanoic acid is known as?

5 years ago

A. dehydration B. esterification C. halogenation D. hydrogenation E. saponification Correct Answer: Option B - esterification