📚NCERT Questions — NCERT10

Balance the equation: HNO₃ + Ca(OH)₂ → Ca(NO₃)₂ + H₂O. What is the sum of the coefficients of the balanced equation?

After whitewashing with slaked lime, a shiny finish appears on the walls after two to three days. What compound is responsible for this shiny finish?

What is the chemical formula of the solid residue formed when lead nitrate is heated?

What is the chemical formula for lead nitrate, which produces brown fumes upon heating?

What is the key characteristic that distinguishes a double displacement reaction from a displacement reaction?

Which type of decomposition reaction requires energy in the form of electricity?

A reaction where one reactant gets oxidised while the other gets reduced is called a(n):

When a magnesium ribbon is burnt in air, it changes into a white powder. What is the chemical name of this white powder?

Why should a magnesium ribbon be cleaned with sandpaper before burning in air?

When barium hydroxide is mixed with ammonium chloride in a test tube, the bottom of the test tube feels cold. This indicates that the reaction is: