List of top Questions asked in Bihar Board Class X Exam

The government of Bao Dai in South Vietnam was a supporter of which of the following ?
Who abolished Serfdom in Russia?
Where was the first hydropower plant established in India ?
National income in India is calculated by which of the following?
Who changed the name of Bolshevik Party to Communist Party ?
When was the partition of Bengal annulled?.
Differentiate between metals and non-metals on the basis of physical and chemical properties.
What is called absolute refractive index ?

The changes that occur during adolescence are called
 

Explain recycling of waste materials with examples.
Write the names of four organelles of a cell.
Define respiration.
What is the difference between xylem and phloem ?
What is excretion ? Write the names of its two main parts.
What is phototropism ?
What is pollination ?
How is DNA the basis of heredity ?
What are the harmful effects of aerosol chemicals ?
What is photosynthesis ? Describe it with a suitable diagram.
What is an indicator ? Write the name of an indicator.
What is the difference between an atom and an ion ?
Define ores.
Why have detergents replaced soap ?
What are fossil fuels ?
What do you understand by short and long periods of periodic table ?