Among the following, the narrow spectrum antibiotic is : (1) Penicillin G (2) Ampicillin (3) Amoxycillin (4) Chloramphenicol
Which one of the following statements is not correct? (a) The value of equilibrium constant is changed in the presence of a catalyst in the reaction at equilibrium. (b) Enzymes catalyse mainly bio-chemical reactions. (c) Coenzymes increase the catalytic ...
Which of the following statements is not correct? (a) Ovalbumin is a simple food reserve in egg white. (b) Blood proteins thrombin and fibrinogen are involved in blood clotting. (c) Denaturation makes the proteins more active. (d) Insulin maintains sugar ...
Composition of gun metal is (1) Cu, Zn, Sn (2) Al, Mg, Mn, Cu (3) Cu, Ni, Fe (4) Cu, Sn, Fe
In B2H6 (1) BH3 is a lewis base (2) External B-H bonds have less p-character (3) All bond angles are 120° (4) B-H-B bonds are not identical
Which among the following is true ? (1) Buna-N is a natural polymer (2) Buna-N's manufacture requires nascent oxygen (3) Neoprene is addition co-polymer and used in bucket formation (4) Buna-S is straight linear polymer and is thermosetting plastic
The one that is not expected to show isomerism is: (1) [Ni(NH3)2Cl2] (2) [Ni(NH3)4(H2O)2]2+ (3) [Ni(en)3]2+ (4) [Pt(NH3)2Cl2]
Cast iron is used for the manufacture of : (1) wrought iron and steel (2) wrought iron, pig iron and steel (3) wrought iron and pig iron (4) pig iron, scrap iron and steel