When `NaOH` crystals are left in open air, they acquire a fluid layer around each crystal as

When NaOH pallets are left in the open air they acquire a fluid layer around each crystal as

When NaOH pallets are left in the open air they acquire a fluid layer around each crystal as

When crystals of washing soda are left open in air, they lose

When crystal of caustic soda is exposed to air a liquid layer is deposited because the crystal

When a crystal of caustic soda is exposed to air, a liquid layer is deposited because:

When a crystal of NaOH is exposed to air a liquid layer is developed on its surface because

The layer of air around the earth is known as ____

When copper vessels are kept in open air, over a period of time they coated with a green layer. The green layer is