Which of the following organism breathes from skin?
A. Snake
B. Earthworm
C. Monkey
D. Humans
Submitted by :- Muhammad Nawaz
Which of the following aquatic animals does NOT have gills?
A. Octopus
B. Squid
C. Clown fish
D. Whale
Submitted by :- Muhammad Nawaz
Which among following is not an example of mixture?
A. Steel
B. Juice
C. Tea
D. Common salt
Submitted by :- Muhammad Nawaz
Which gas is present in air with highest percentage?
A. Oxygen
B. Nitrogen
C. Hydrogen
D. Carbon dioxide
Submitted by :- Muhammad Nawaz
Which gas is used for filling party and advertisement balloons?
A. Oxygen
B. Nitrogen
C. Hydrogen
D. Helium
E. Both C and D options are correct
Submitted by :- Muhammad Nawaz
Which process is used for purifying solid ?
A. Filtration
B. Distillation
C. Condensation
D. Chromatography
Submitted by :- Muhammad Nawaz
In whole Periodic Table which element Is Most Reducing Agent ?
A. Chlorine
B. lithium
C. Helium
D. Neon
Submitted by :- Jamil Ahmed
Effective volume is usually taken for ____________ ?
A. 2 moles of gas
B. 1 mole of gas
C. 5 moles of gas
D. 3moles of gas
Submitted by :- Saqib Ali
A solution in which more solute can not dissolve at a given temperature is known as:
A. Saturated Solution
B. Super Saturated Solution
C. Unsaturated Solution
D. Heterogenous Solution
E. None of these
Submitted by :- Muhammad Nawaz
the molecular model of dna which suggest the basic mechanism of dna replication was proposed by
Charles Drawings and G Mendet
C.Woese and R Franclin
James Watson and Francis Crick
M.Wilkuns and J.Black
Submitted by :- Muhammad Nawaz