The byproduct of Solvay process is:
Washing soda is:
The suspension of slaked lime in water is known as
(C) milk of lime
(d) aqueous solution of slaked lime
In context with beryllium, which one of the following statements is incorrect?
(a) It is rendered passive by nitric acid
(b) lt forms Be2C
(c) Its salts rarely hydrolyse
(d) Its hydride is electron-deficient and polymeric
On heating which of the following releases CO2 most easily?
(a) K2CO3 (b) Na2CO3
(c) MgCO3 (d) CaCO3
Which of the following alkaline earth metal sulphates has hydration enthalpy higher than the lattice enthalpy?
(a) CaSO4 (b) BeSO4
(c) BaSO4 (d) SrSO4
A compound (A) is used in preparation of washing soda to recover ammonia in Solvay's process. When is bubbled through an aqueous solution of (A), the solution turns milky.It is used in white washing due to disinfectant nature. What is the chemical formula of A?
(a) (b) CaO
is preffered over NaCl for clearing ice on roads particularly in very cold countries. This is because:
(a) is less soluble in than NaCl
(b) is hygroscopic but NaCl is not
(c) Eutectic mixture of freezes at while that of freezes at
(d) NaCl makes the road slippery but does not
Which of the following statement is false?
(a) The milk of magnesia used as antacidis chemically
(b) Stability of alkali metal peroxides increases with increase in atomic number
(c) Hydration energy of AgF is higher than its lattice energy
(d) Anhydrous cannot be prepared contains by direct heating of
A metal [x] on heating on nitrogen gas gives [Y]. [Y] on treatment with gives a colourless gas which when passed through solution gives a blue colour. [Y] is