List of top Questions asked in UP Board X- 2023

How will you obtain the following? (Write chemical equations)

Washing Soda from Baking Soda
Plaster of Paris from Gypsum
What is the phenomenon of electromagnetic induction? Explain Faraday’s experiment associated with this phenomenon.
Explain the following:

Cleansing action of soap
Calcination and Roasting
Activity series of metals
What is Ohm's Law? Explain the verification of this law with the help of a circuit diagram.
Explain the production of a magnetic field due to current in a conductor by making a diagram.
Explain the phenomenon of dispersion of white light through a prism by making a diagram.
Write chemical equations of two chemical properties of Ethanoic Acid
On burning, fossil fuel gives:
Which of the following pair is used in the reaction of photosynthesis?
Insulin is secreted by:
The principle of organic evolution was propounded by:
A common unisexual male flower doesn’t have:
Draw a ray diagram in order to obtain a virtual image of an object by a concave mirror. Write down any one use of this mirror.
Which of the following is a combustion reaction?
The chemical formula of Plaster of Paris is:
Which of the following is a producer?
On going down a group, the size of an atom increases because:
The pH value of pure water remains:
The IUPAC name of \( \text{CH}_3\text{CH}_2\text{OH} \) is:
The functional group in Aldehyde is:
Write an essay on Sexual Reproduction in Flowering Plants
If electric power and resistance are expressed as \( P \) and \( R \) respectively, then electric current is expressed as:
What is the total resistance of two resistors, \( R \) and \( 2R \), when they are connected in parallel?
The number of turns is increased by \( n \) times in a current-carrying circular coil. Then the magnetic field at the center of the coil is:
Power of a lens is -2.5 D. The focal length and nature of the lens is: