Photosynthesis: Plants Transform Light Energy into Chemical Energy

In this quiz, you will find questions related to photosynthesis i.e, the process by which green plants and certain other organisms transform light energy into chemical energy, different steps of photosynthesis, etc.

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The process in which green plants synthesize organic food by utilizing carbon dioxide and water as raw materials, in the presence of sunlight is called as ______

Respiration Food synthesis Photosynthesis Light synthesis

Which is correct regarding photosynthesis?

Carbon dioxide is obtained from the atmosphere Water is absorbed from the soil through the stem system Sunlight is trapped by pigments called xanthophyll Chlorophyll absorbs green light

The half leaf experiment showed that _____ is important for photosynthesis.

O2 CO2 Sunlight Chlorophyll

A compound was used in the half leaf experiment to absorb CO2. This compound is ______

KMNO4 HCl NaOH KOH

Chlorophyll b is the major pigment associated with photosynthesis.

True False

Latent heat of ice is

Less than external latent heat of fusion Equal to external latent heat of fusion More then external latent heat of fusion Twice the external latent heat of fusion

In a system where ∆E = -51.0 kJ, a piston expanded against a pext of 1.2 atm giving a change in volume of 32.0 L. What was the change in heat of this system?

-36 kJ -13 kJ -47 kJ 24 kJ

The position of double bond in alkenes can be located by :

Hydrogenation of oil Ozonolysis Photolysis Hydration

Nitrobenzene on reaction with conc. HNO3/H2SO4 at 80 – 100°C forms which one of the following products?

1, 2-Dinitrobenzene 1, 3-Dinitrobenzene 1, 4-Dinitrobenzene 1, 2, 4-Trinitrobenzene

Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating?

–C ≡ N -SO3H -COOH -NO2

Photorespiration is favoured by

High O2 and low CO2

Low light and high O2

Low temperature and high O2

None of these