1000+ Last 10 Years TNPSC Question Papers with Answers Pdf - 1

Question: 1

The magnetic separation is used for increasing concentration of the following

(A) Haematite

(B) Calcite

(C) Magnesite

(D) Horn silver

Ans: A


Question: 2

Or which of the following cells, the standard cell voltage is zero?

(A) Fuel cell

(B) Daniell cell

(C) Concentration cell

(D) Electrolytic cell

Ans: C

Concentration cell

Question: 3

In a period, the elements are arranged in the order of

(A) Increasing charges in the nucleus

(B) Decreasing charges in the nucleus

(C) Equal charges in the nucleus

(D) Constant charges in the nucleus

Ans: A

Increasing charges in the nucleus

Question: 4

The standard heat of formation of diamond is

(A) Taken as zero

(B) Less than that of graphite

(C) Greater than of graphite

(D) Same as that of graphite

Ans: C

Greater than of graphite

Question: 5

The most electropositive amongst the alkaline earth metals is

(A) Barium

(B) Beryllium

(C) Calcium

(D) Magnesium

Ans: A


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