TNPSC Chemistry MCQS - 1

Question: 1

The most important ore of aluminium is

(A) Calamite

(B) Calcite

(C) Galena

(D) Bauxite

Question: 2

Which one of the following metallic atom is present in the molecule of super phosphate?

(A) Calcium (Ca)

(B) Magnesium (Mg)

(C) Sodium (Na)

(D) Potassium (K)

Question: 3

Which of the following metal is present in photo films?

(A) Mercury

(B) Silver

(C) Magnesium

(D) Platinum

Question: 4

Which one of the following is used in preparing match sticks?

(A) Sodium bicarbonate

(B) Red phosphorous

(C) Chile saltpetre

(D) Indian salpetre

Question: 5

The boiling point of ethanol is

(A) 252 K

(B) 290 K

(C) 329 K

(D) 351 K