List of top Science Questions asked in UP Board X

(i) Write the names of reactants and products for the reaction: \[ \text{Fe} + \text{CuSO}_4 \rightarrow \text{FeSO}_4 + \text{Cu} \downarrow \]
(ii) Give one example of a thermal decomposition reaction (only equation for the reaction).
Mention any two properties of magnetic field lines. Define Maxwell's cork-screw rule for finding direction of magnetic field due to a straight current carrying wire. Depict the magnetic field lines due to a vertical current carrying conductor. Show uniform magnetic field in a given region.
Explain the meaning of electromagnetic induction. What type of energy is utilized by an electric generator in generating electricity? Draw a labelled diagram of the construction of an a.c. generator and explain its working. What is the frequency of a.c. power supplied in India?
In which of the following plants, are flowers unisexual?
Copper-T is fitted in which part of female reproductive system?
In which of the following plants has Mendel performed his experiment?
Who proposed the theory of organic evolution by natural selection?
The biological process by which harmful products are removed from the body is called:
Which one of the following processes does not occur during photosynthesis?
Which of the following statements is not true about fermentation?
Valency of carbon atom is:
Match the compounds given in Column (A) with their examples given in Column (B):
The functional group in Propanone is:
Burning of carbon in air to form carbon dioxide gas is an example of:
If a concave mirror forms real, inverted, and a very small image of an object, then the object should be situated:
At NTP, the non-metal found in liquid form is:
The gas liberated on reaction of dilute sulphuric acid on zinc powder is:
Magnified virtual image of an object can be formed by:
A person is unable to see distant objects clearly. Defect in his eyes will be:
A material of very large resistance is called as:
Unit of electrical power is:
If current flowing in an electric kettle is tripled, heat produced in the kettle will become:
Laws of reflection are always true for:
Explain the structure of Nephron and mechanism of its working.
Draw a labelled diagram of the human digestive system and explain the digestive process.