(A) biomass
(B) sulfur
(C) phosphate
(D) nitrogen
The answer is: (D) nitrogen
Chemistry MCQs quiz test questions with answers for FPSC CSS PPSC NTS SPSC KPPSC test preparation, including questions from chemistry past papers. Basic Chemistry MCQ of class 9, 10, 11, 12 and advanced Chemistry MCQs of BSc, MSc or Masters level.
(A) biomass
(B) sulfur
(C) phosphate
(D) nitrogen
The answer is: (D) nitrogen
(A) alkanes
(B) alkenes
(C) alkali metals
(D) halogens
The answer is: (D) halogens
The elements in group 7A of the periodic table are known as halogens.
Chemistry multiple choice questions with answers.