List of top Science Questions asked in UP Board

Who among the following is famous as the 'Water Man of India'?
Which one of the following ray diagrams (for a concave/diverging lens) is correct?
Pure air is:
pH value of pure water is:
Electric motor is a device which transforms:
Alkene is:
On moving from left to right in the third period of the periodic table:
The current passing through an electric kettle has been doubled. The heat produced will become:
A mirror producing a virtual image larger than the object is:
The most suitable material for making the core of an electromagnet is:
The colour of white light which is deviated maximum on passing through the glass prism is:
Write an essay on sustainable management of natural resources.
Describe the female reproductive system of humans.
The human eye forms the image of an object at its:
What do you mean by electromagnetic induction? On what factors does the value of induced current in a circuit depend? Name and state the rule used for determination of direction of induced current. State the practical application of this phenomenon in everyday life. OR Draw a labelled circuit diagram of an electric generator and explain its principle and working.
Draw a labelled circuit diagram of an electric generator and explain its principle and working.
How many groups and periods are present in the Modern Periodic Table? In which groups are alkaline metals and inert elements placed in this periodic table?
Give an account on photosynthesis.
Write IUPAC name of the following compounds:

[(a)] Neopentane
[(b)] Secondary butyl alcohol
[(c)] Trichloroacetic acid
[(d)] Acetylene
Comment upon nuclear and oceanic energy.
What happens when (write only balanced chemical equation):

[(a)] CO\(_2\) gas is passed in lime water for a long time
[(b)] Dry lime reacts with dry Cl\(_2\) gas
[(c)] Gypsum is heated
[(d)] Sodium metal reacts with water
Write short notes on the following:

[(a)] Roasting
[(b)] Double Decomposition
[(c)] Corrosion
Explain homologous and analogous organs.
The radius of curvature of a concave mirror is 40 cm. An object is placed in front of it at a distance of 15 cm. Find the position of its image and draw its ray diagram.
In the circuit diagram given below, five resistances of 10 \(\Omega\), 40 \(\Omega\), 30 \(\Omega\), 20 \(\Omega\), and 60 \(\Omega\) are connected as shown to a 12 volt battery. Calculate:

[(a)] Total (equivalent) resistance in the circuit.
[(b)] Total current flowing in the circuit.