(a) Fractional crystallization
(b) Distillation
(c) Chromatography
(d) Sublimation
Answer:
In methane molecule the four hydrogen atoms are arranged as
(a) Octahedral
(b) Tetrahedral
(c) Square planar
(d) Square pyramid
Answer:
The first organic compound synthesized in the laboratory was
(a) Lactic acid
(b) Glucose
(c) Urea
(d) Uric acid
Answer:
Which of the following is used in synthetic lemonade?
(a) Oxalic acid
(b) Citric acid
(c) Tartaric acid
(d) Acetic acid
Answer:
Fruity smell is given by
(a) Chloroform
(b) Acid anthydride
(c) Esters
(d) Alcohols
Answer:
Which one of the following petroleum refinery products has the lowest boiling point
(a) Diesel
(b) Gasoline
(c) Kerosene
(d) Lubricating oil
Answer:
In which among the following molecules is the distance between two adjacent carbon atoms largest
(a) Ethyene
(b) Ethene
(c) Ethane
(d) Benzene
Answer:
Man-made pollutants are called
(a) Antibiotics
(b) Humalins
(c) Xenobiotics
(d) Analgesis
Answer:
Branch of biology in which we study about cultivation of flowering plant
(a) Agronomy
(b) Botany
(c) Phenology
(d) Floriculture
Answer:
Bacteria helpful inmaking curd milk
(a) Yeast
(b) Lacto bacillus
(c) Mycobacterium
(d) Staphilo Coccus
Answer: