Chemistry - MOST IMPORTANT UP PCS Previous Year Questions

Oxytocin / Hormone

Aspartame / Synthetic sweetner

Neoprene / Specialized rubber

Rayon / Modified starch

China clay

Corundum

Gypsum

Talc

Silver bromide / artificial photosynthesis

Silver iodide / artificial rain

Lithium bicarbonate / treatment of rheumatism

Milk of magnesia / antacid

Desalination / Sea water

Reverse osmosis / Potable water

Denaturation / Proteins

Pasteurisation / Tea

Sodium chlorate

Potassium permanganate

Bleaching powder

None of the above

A-$\displaystyle 2$, B-$\displaystyle 4$, C-$\displaystyle 3$, D-$\displaystyle 1$

A-$\displaystyle 2$, B-$\displaystyle 3$, C-$\displaystyle 4$, D-$\displaystyle 1$

A-$\displaystyle 4$, B-$\displaystyle 3$, C-$\displaystyle 1$, D-$\displaystyle 2$

A-$\displaystyle 3$, B-$\displaystyle 1$, C-$\displaystyle 2$, D-$\displaystyle 4$

Sublimation

Evaporation

Diffusion

Radiation

$\displaystyle 1$, $\displaystyle 2$, $\displaystyle 3$, $\displaystyle 4$

$\displaystyle 4$, $\displaystyle 2$, $\displaystyle 3$, $\displaystyle 1$

$\displaystyle 2$, $\displaystyle 4$, $\displaystyle 3$, $\displaystyle 1$

$\displaystyle 4$, $\displaystyle 1$, $\displaystyle 2$, $\displaystyle 3$

Vitamin B6 / Rice bran

Vitamin B2 / Cod-liver oil

Vitamin E / Wheat germ oil

Vitamin K / Alfalfa

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true but (R) is not the correct explanation of (A)

(A) is true, but (R) is false

(A) is false, but (R) is true

$\displaystyle 1$ Only

$\displaystyle 2$ Only

Both $\displaystyle 1$ and $\displaystyle 2$

Neither $\displaystyle 1$ nor $\displaystyle 2$

Iron

Calcium

Magnesium

Potassium

$\displaystyle 1$ only

$\displaystyle 2$ only

Both $\displaystyle 1$ and $\displaystyle 2$

Neither $\displaystyle 1$ nor $\displaystyle 2$

Natural environment

Anthropogenic environment

Urban environment

Modern environment

Cartagena Protocol / Biosafety

Stockholm Convention / Persistent organic pollutant

Montreal Protocol / Ozone layer

Kyoto Protocol / Save water

Oxygen and ozone

Ozone and nitrogen

Oxygen and nitrogen

Oxide of nitrogen and sulphur

Teflon

Neoprene

Polystyrene

Polythene

Fibrin

Lexan

Neoprene

Teflon

A-$\displaystyle 2$ B-$\displaystyle 3$ C-$\displaystyle 4$ D-$\displaystyle 1$

A-$\displaystyle 2$ B-$\displaystyle 1$ C-$\displaystyle 3$ D-$\displaystyle 4$

A-$\displaystyle 2$ B-$\displaystyle 3$ C-$\displaystyle 1$ D-$\displaystyle 4$

A-$\displaystyle 2$ B-$\displaystyle 4$ C-$\displaystyle 1$ D-$\displaystyle 3$

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true but (R) is not the correct explanation of (A)

(A) is true but (R) is false

(A) is false but (R) is true