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A. Nitrogen dioxide
B. Nitric oxide
C. Nitrogen pentoxide
D. Nitrous oxide
Answer
Answer
D. Nitrous oxide
Submitted by: Toheed Ahmed
Which of the following is the lightest substance known?
A. Oxygen
B. Hydrogen
C. Carbon
D. Nitrogen
Answer
Answer
B. Hydrogen
Submitted by: Toheed Ahmed
Wood is the main raw material for the manufacture of
A. Paper
B. Gun powder
C. Paint
D. Ink
Answer
Answer
A. Paper
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A body immersed in a fluid experiences an upward thrust which depends on
A. The volume of the body
B. The weight of the fluid displaced by it
C. The mass of the body
D. None of the above
Answer
Answer
B. The weight of the fluid displaced by it
Submitted by: Toheed Ahmed
In the microphon , used in the public address system
A. Electric signals are first converted into sound waves
B. Sound waves are converted into electric signals which are amplified and transmitted
C. Sound waves are directly transmitted
D. Amplification is not required
Answer
Answer
B
Submitted by: Toheed Ahmed
Which of the following acids, secreted internally, helps in digestion?
A. Acetic
B. Hydrochloric
C. Sulphuric
D. Citric
Answer
Answer
B. Hydrochloric
Submitted by: Toheed Ahmed
The protein content in wheat is approximately _________?
A. 12 per cent
B. 8 per cent
C. 6 per cent
D. 16 per cent
Answer
Answer
A. 12 per cent
Submitted by: Toheed Ahmed
What are the primary colours?
A. Blue, green, yellow
B. Green, white, black
C. Red, blue, green
D. Yellow, red, blue
Answer
Answer
C. Red, blue, green
Submitted by: Toheed Ahmed
Which of the following human bones is the knee bone?
A. Phalanx
B. Stapes
C. Patella
D. Calvicle
Answer
Answer
C. Patella
Submitted by: Toheed Ahmed
The raw material used for the manufacture of Glass and Cement is
A. Gypsum
B. Washing soda
C. Limestone
D. Clay
Answer
Answer
C. Limestone
Submitted by: Toheed Ahmed