Chemistry General Knowledge Questions and Answers: Chemistry GK

Chemistry-GK

31. Talc contains which one of the following ?  

A.  zinc,calcium,oxygen
B.  calcium,oxygen,tin
C.  magnesium,silicon,oxygen
D.  zinc,tin,sulphur

32. Which one of the following substances is made up of only one type of atoms?  

A.  water
B.  hydrogen
C.  milk
D.  air

33. Which one of the following is used as a mordant in dyeing and tanning indusrty?  

A.  Magnesium oxide
B.  magnesium carbonate
C.  magnesium chloride
D.  magnesium sulphate

34. Which one of the following glasses is used in bullet proof screens?  

A.  Soda glass
B.  Pyrex glasss
C.  Jena glass
D.  Reinforced glass

35. For Which one of the following is the density maximum ?  

A. Chloroform
B. Water
C. Benzene
D. Ice

36. Which substance is used to retard the setting action of cement?  

A.  CaO
B.  AlO
C.  CaSO.2HO
D.  NaO + KO

37. What is a mixture of potassium nitrate , powdered charcoal and sulphur called?  

A.  Glass
B.  Cement
C.  Paint
D.  Gun Powder

38. Which one of the following is the softest?  

A.  Iron
B.  Aluminium
C.  Calcium
D.  Lithium

39. The iron layered with zinc is called  

A.  Pig iron
B.  Cost iron
C.  Galvanised iron
D.  Steel

40. When quick lime is added to water  

A.  Heat is liberated
B.  Heat is absorbed
C.  Temperature decreases
D.  No heat change takes place

If you like the post please give rating, share to your friends by clicking share button and comment below.