Question Answers will helps you more in competitive entarnce exam They enhance your knowledge , skills and improve learning values. These questions are very easy and simple which is easily stored in memory.latest question answer list describe as below:
1. Ordinary table salt is sodium chloride. What is baking soda?
A. Potassium chloride
B. Potassium carbonate
C. Potassium hydroxide
D. Sodium bicarbonate
2. Ozone hole refers to
A. hole in ozone layer
B. decrease in the ozone layer in troposphere
C. decrease in thickness of ozone layer in stratosphere
D. increase in the thickness of ozone layer in troposphere
3. Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to
A. angiosperms
B. gymnosperms
C. monocotyledons
D. dicotyledons
4. Pollination is best defined as
A. transfer of pollen from anther to stigma
B. germination of pollen grains
C. growth of pollen tube in ovule
D. visiting flowers by insects
5. Plants receive their nutrients mainly from
A. chlorophyll
B. atmosphere
C. light
D. soil
6. Movement of cell against concentration gradient is called
A. osmosis
B. active transport
C. diffusion
D. passive transport
7. Photosynthesis generally takes place in which parts of the plant?
A. Leaf and other chloroplast bearing parts
B. stem and leaf
C. Roots and chloroplast bearing parts
D. Bark and leaf
8. Most fish do not sink in water because of the presence of
swim bladder
air bladder
air sacs
air in spongy bones
A. I and II are correct
B. II and III are correct
C. III and IV are correct
D. I, II, III and IV are correct
9. Plants synthesis protein from
A. starch
B. sugar
C. amino acids
D. fatty acids
10. Plants absorb dissolved nitrates from soil and convert them into
A. free nitrogen
B. urea
C. ammonia
D. proteins
11. The nucleus of an atom consists of
A. electrons and neutrons
B. electrons and protons
C. protons and neutrons
D. All of the above
12. The number of moles of solute present in 1 kg of a solvent is called its
A. molality
B. molarity
C. normality
D. formality
13. The most electronegative element among the following is
A. sodium
B. bromine
C. fluorine
D. oxygen
14. The metal used to recover copper from a solution of copper sulphate is
A. Na
B. Ag
C. Hg
D. Fe
15. The number of d-electrons in Fe2+ (Z = 26) is not equal to that of
A. p-electrons in Ne(Z = 10)
B. s-electrons in Mg(Z = 12)
C. d-electrons in Fe(Z = 26)
D. p-electrons in CI(Z = 17)
16. The metallurgical process in which a metal is obtained in a fused state is called
A. smelting
B. roasting
C. calcinations
D. froth floatation
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