Chemistry - MOST IMPORTANT DDA MTS Previous Year Questions

CuO

Cu2O

Cu (OH)$\displaystyle 2$

CuCO3

directly proportional to its molecular mass

directly proportional to its density

inversely proportional to the square root of its density

inversely proportional to the square root of its molecular mass

(NH4)$\displaystyle 2$(SO4), Ammonium ion +$\displaystyle 1$, Sulphate ion +$\displaystyle 2$

(NH4)$\displaystyle 2$ SO4, Ammonium ion +$\displaystyle 1$, Sulphate ion -$\displaystyle 2$

NH4SO4, Ammonium ion +$\displaystyle 1$, Sulphate ion -$\displaystyle 1$

NH4(SO4)$\displaystyle 2$, Ammonium ion +$\displaystyle 1$, Sulphate ion +$\displaystyle 2$

NH is formed with a valency of –$\displaystyle 7$

NH+ is formed with a valency of +$\displaystyle 1$

NH+ Is formed with a valency of +$\displaystyle 7$

NH is formed with a valency of –$\displaystyle 1$

Carbon dioxide

Hydrogen

Nitrogen

Oxygen

Lipids

Carbohydrates

Vitamins

Proteins

$\displaystyle 6$

$\displaystyle 5$

$\displaystyle 4$

$\displaystyle 7$

Salt + Water

Metal + Salt

Acid + Hydrogen

Salt + Hydrogen

Iron (Fe)

Oxygen gas (O2)

Carbon dioxide (CO2)

Hydrogen gas (H2)

F2

Cl-

Na+

O2-

Water

Hydrogen

Oxygen

Iron

Hydrolysis

Oxidation

Reduction

Combustion