Home
Class 12
CHEMISTRY
Statement -1 : Na(2)HPO(3) is not an aci...

Statement -1 : `Na_(2)HPO_(3)` is not an acid salt.
Statement -2 : `Na_(2)HPO_(3)` on heating decomposes to give phosphine gas and a mixture of phosphates.

A

Statement -1 is true, Statement- 2 is false.

B

Statement -1 is true , Statement-2 is true, Statement-2 is a NOT a correct explanation for Statement -1.

C

Statement -1 and Statement- 2 both are False.

D

Statement -1 is False, Statement- 2 is True.

Text Solution

Verified by Experts

The correct Answer is:
B
`Na_(2)HPO_(3)` is the salt of `H_(3)PO_(3)` which is dibasic in nature (as it contains two `OH^(-)` groups)
`8Na_(2)HPO_(2)overset(Delta)to 2PH_(3)+4NaPO_(4)+Na_(4)P_(2)O_(7)+H_(2)O`
Promotional Banner

Topper's Solved these Questions

  • P BLOCK ELEMENTS

    RESONANCE ENGLISH|Exercise ALP PART 1 Comprehension # 1 OBJECTIVE|8 Videos

  • P BLOCK ELEMENTS

    RESONANCE ENGLISH|Exercise ALP PART 1 Comprehension # 2 OBJECTIVE|1 Videos

  • P BLOCK ELEMENTS

    RESONANCE ENGLISH|Exercise ALP PART CBSC- III SUBJECTIVE|1 Videos

  • NUCLEAR CHEMISTRY

    RESONANCE ENGLISH|Exercise STAGE-II|1 Videos

  • P-BLOCK ELEMENT (BORON AND CARBON FAMILY)

    RESONANCE ENGLISH|Exercise PART - III : OLYMPIAD PROBLEMS (PREVIOUS YEARS) STAGE - V (INTERNATIONAL CHEMISTRY OLYMPIAD (IChO)) Problem 3|8 Videos

Similar Questions

Explore conceptually related problems

Statement-1: H_(2)S is weak diprotic acid. Statement-2: Salt of aq. Na_(2)S has pH greater than 7.

False statement about Na_(2)CO_(3).10H_(2)O is

Na_(2)S_(2)O_(3) is oxidized by I_(2) to give

Assertion (A): Na_(2)S_(2)O_(3) is a salt of unstable acid. Reason (R) : H_(2)S_(2)O_(3) is a polyprotic acid.

Why is Li_(2)CO_(3) decomposed at a lower temperature whereas Na_(2)CO_(3) at higher temperature?

Statement-1: Pure NaCl is a diliquescent crystalline solid. Statement-2: Na_(2)CO_(3) is known as pearl ash. Statement-3: Sulphur disproportionates in NaOH.

The gas evolved on heating Na_(2)CO_(3) is

Statement-1: K_(2)CO_(3) cannot be prepared by Le-blanc method. Statement-2: Sodium nitrate when heated gives NO_(2) gas. Statement-3: NaO_(2) is paramagnetic while Na_(2)O_(2) is diamagnetic.

Na_(2)CO_(3) does not decompose on heating whereas CaCO_(3) decomposes . Why ?

Statement-1: Sodium silicate is called water glass. Statement-2:Salts of lead are poisonous in nature. Statement-3: Producer gas is a mixture of CO and N.