Question

Choose the correct alternative from those alternatives given below for the following
statements :
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1. Of what is the reaction Fe2O3 + 2A1-Al2O3 + 2Fe an example ?
A. Decomposition reaction
B. Combination reaction
C. Displacement reaction
D. Double displacement reaction
2. Which functional group is present in detergent ?
A. - CONa B. - COONa
C. - SO3Na D. - CO3Na
3. In what does glucose breakdown in the first step of respiration in cytoplasm ?
A. Lactic acid B. Carbon dioxide C. Starch D. Pyruvate
4. From which of following, electricity can be generated without the use of turbine ?
A. Tidal energy
B. Geothermal energy
C. Tidal energy
D. Solar energy
5. Where should an object be placed to obtain its image as real and of same size as
the object by a convex lens ?
B. At 2F1
C. Between Fi and 2F1 D. Between 0 and Fi
6. Which optical phenomenon is responsible for the twinkling of stars ?
A. Atmospheric reflection B. Atmospheric refraction C. Dispersion D. Scattering
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Answer 1

Explanation:

Biologically, a child (plural children) is a human being between the stages of birth and puberty,[1][2] or between the developmental period of infancy and puberty.[3] The legal definition of child generally refers to a minor, otherwise known as a person younger than the age of majority.[1] Children generally have fewer rights and less responsibility than adults. They are classed as unable to make serious decisions, and legally must be under the care of their parents or another responsible caregiver.