SST Teacher SPSC Paper on 05-05-2024

In a sample of a substance, at any given temperature the energy of all particles will

A. Not be same

B. Be same

C. Equal

D. Constant

The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits

A. Ethylene iodide

B. Ethylene bromide

C. Ethylene chloride

D. Ethylene fluoride

Isotopes differs in ————-?

A. Arrangement of electrons in orbitals

B. Position in the periodic table

C. Properties depend upon mass

D. Chemical properties

Equal masses of methane and oxygen are mixed in empty container at 250-degree C. The fraction of total pressure exerted by oxygen will be

A. One/seventeen

B. Sixteen/seventeen

C. One/three

D. Two/three

A number which is assigned to each atom or ion in a compound which explains its degree of oxidation is called

A. Oxidation state only

B. Oxidation number

C. Oxidation degree only

D. Oxidation state and number

Elements found in D-block of the periodic table are known as

A. Noble gases

B. Transition elements

C. Alkalis

D. Acids

The soul of chemistry is dealing with

A. Internal structural changes in matter

B. Composition of matter

C. Properties of matter

D. Composition and properties of matter

Amines which are bonded in Alkyl group are

A. Primary amines

B. Secondary amines

C. Tertiary amines

D. Quaternary amines

Phenyl amine is involved importantly in the synthesis of

A. Dyes

B. Medicines

C. Drugs

D. Capsules

The distribution of energy for temperature was given in

A. Boltzmann distribution

B. Boltzmann energy

C. Boltzmann temperature distribution

D. Boltzmann pressure

MCQs (Category wise)

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