Q1) An implement which is not used in ploughing is
a) Plough b) Hoe c) Cultivator d) Harrow
Q2) The fermentation property of some fungi is used for manufacturing
a) Citric acid b) Hydrochloric acid c) Nitric acid d) Sulphuric acid
Q 3) Which of the following is a thermosplastic?
a) Polythene b) PVC c) Teflon d) Both ‘a’ and ‘b’
Q 4) A non-metal with high melting and boiling point is
a) Carbon b) Graphite c) Iodine d) Bromine
Q 5) An example of explosion combustion is
a) forest b) fire crackers c) wax d) burning matchstick
Q 6) Plastids that are not found in fruits, flowers and leaves are
a) Chromoplasts b) Chloroplasts c) Leucoplasts d) All of these
Q 7) Two students pull a rope from two ends with a force equal to 80N.So the total
resultant force applied by them will be
a) 0N b) 100N c) 160 N d) 40N
Q 8) Friction does not depend upon
a) Nature of the object b) Weight of the object
c) Area of the object d) Surface of the object
Q 9) Which of the following is not a fibre crop?
a) Cotton b) Hemp c) Jute d) Lentil
Q 10) Bacillus is a bacteria that has a
a) rod shape b) spherical shape c) spiral shape d) comma shape
Q 11) Which will be the least reactive metal from the metals given below?
a) Zinc b) Iron c) Copper d) Magnesium
Q 12) 2,4-D is an example of
a) Pesticide b) Insecticide c) Fungicide d) Weedicide
Q 13) An example of bacterial disease in plants is
a) Potato blight b) Citrus canker c) Rust of wheat d) Tobacco mosaic
Q 14) What will be the product formed when Calcium sulphate reacts with Magnesium?
a) Calcium sulphate b) Magnesium sulphate
c) No reaction d) Calcium oxalate
Q 15) An animal cell consists of
a) nucleus b) centrosome c) vacuole d) all of these
Q 16) The foundations of a building are kept wide because
a) increase in the area decreases the pressure
b) decrease in the area increases thepressure
c) pressure becomes equal with area
d) none of these
Q 17) Nutrients in the soil can be replenished naturally by
a) Field fallow b) Crop rotation c) Mixed cropping d) All of these
Q 18) Malaria is spread by
a) Bacterium b) Virus c) Protozoan d) Fungus
Q 19) At room temperature, non-metals react with acids to form
a) acidic oxides b) basic oxides c) neutral oxides d) none of these
Q 20) Spikes provided under the shoes of the players help to
a) increase the friction b) decrease the friction
c) no change in friction d) to make the surface smooth
Answers
Answered by
0
Answer:
1. plough
2.
3. both a and b
Answered by
0
Answer:
Ans 1 (d)
Ans 2 (b)
Ans 3(a)
Ans 4(c)
Ans 5 (b)
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