Chemistry (General Concepts) MCQs with Answers

In modern periodic table, how many periods are there?

• A.6
• B.7
• C.8
• D.9

The compound 1, 2–Butadiene has _?

• A.Only sp hybridized C-atoms
• B.Only sp² hybridized C-atoms
• C.sp and sp² hybridized C-atoms
• D.sp, sp², and sp³ hybridized C-atoms

Acetone and chloroform are soluble into each other due to _?

• A.Dipole-dipole interaction
• B.Hydrogen bonding
• C.Ionic bonding
• D.London dispersion forces

Which of the following statements is not true for alkynes?

• A.They contain at least one carbon-carbon triple bond
• B.They have the general formula CnH2n-2
• C.They undergo addition reactions
• D.They do not perform Bayer's Test

If we move down in electrochemical series ?

• A.Reduction potential will decrease
• B.Reduction potential will increase
• C.Oxidation potential will decrease
• D.Both reduction and oxidation potentials remain constant

The critical temperature of water is higher than O2, because the H2O molecules have ?

• A.Dipole moment
• B.Higher molecular weight
• C.Larger atomic size
• D.More electrons

In group, electron affinity values decreases from top to bottom because ?

• A.Electronegativity increases
• B.Nuclear charge increases
• C.Atomic size increases
• D.Ionization energy increases

Ethers show the phenomenon of ?

• A.Isomerism
• B.Metamerism
• C.Tautomerism
• D.Polymerism

The prefix 'hept' stands for the carbon atoms.

• A.5
• B.6
• C.7
• D.8

Born-Haber cycle is used to calculate _?

• A.Bond dissociation energy of covalent compounds
• B.Ionization energy of gaseous atoms
• C.Electron affinity of non-metals
• D.Lattice energy of ionic compounds