Chemistry Mcqs

In the production of wrought iron Mg Si and P are removed in the form of___________________?

• (A)  oxides
• (B)  silicates
• (C)  slag
• (D)  carbonates

Answer

Submitted By :Ali Uppal

When the central atom of coordination compound is sp3d2 hybridization the expected geometry will be___________________?

• (A)  tetrahedral
• (B)  square planar
• (C)  trigonal bipyramidal
• (D)  octahedral

Answer

Submitted By :Ali Uppal

In complex compounds the oxidation number is written in___________________?

• (A)  English
• (B)  Greek
• (C)  Roman numeral
• (D)  Hebrew

Answer

Submitted By :Ali Uppal

The nitrogenous base different in RNA as compared to DNA is_________________?

• (A)  Cytosine
• (B)  Thymine
• (C)  Adenine
• (D)  Guanine

Answer

Submitted By :Ali Uppal

The mechanism by which the genetic information can be duplicated is called_________________?

• (A)  Duplication
• (B)  Transcription
• (C)  Replication
• (D)  Mutation

Answer

Submitted By :Ali Uppal

Nucleic acids were first demonstrated in_________________?

• (A)  Pus cells
• (B)  Sperm heads
• (C)  1872
• (D)  all of the above

Answer

Submitted By :Ali Uppal

Enzyme proved useful in cancer treatment is_______________?

• (A)  Lactic dehydrogenase
• (B)  Alkaline phosphatase
• (C)  L-asparaginase
• (D)  Cellulase

Answer

Submitted By :Ali Uppal

Enzymes from the same organism which catalyze same reaction but are chemically and physically distinct from each other are called______________?

• (A)  Oxidoreductases
• (B)  Hydrolases
• (C)  Isoenzymes
• (D)  Isomerases

Answer

Submitted By :Ali Uppal

Saponification is the hydrolysis of fat or oil with an__________________?

• (A)  Acid
• (B)  Alkali
• (C)  Enzyme and alkali
• (D)  Enzyme and acid

Answer

Submitted By :Ali Uppal

Triglycerides are easily hydrolyzed by enzymes called_________________?

• (A)  Lyases
• (B)  Ligases
• (C)  Lipases
• (D)  Hydrolases

Answer

Submitted By :Ali Uppal