a2zinterviews

21.	Cobalt (60) isotope is used in the treatment of
	A.  Diabetes
	B.  Skin diseases
	C.  Cancer
	D.  Heart diseases

Answer

Ans: C Cancer

22.	Which among the following is an element?
	A.  Silica
	B.  Alumina
	C.  Graphite
	D.  Brass

Answer

Ans: B Alumina

23.	The general formula of carboxylic acid is
	A.  RCOOH
	B.  R-COOH
	C.  R-OH
	D.  R-CHO

Answer

Ans: B R-COOH

24.	Ethanoic acid is the IUPAC name of
	A.  Acetic acid
	B.  Oxalic acid
	C.  Propionic acid
	D.  Formic acid

Answer

Ans: A Acetic acid