IIT-JEE 2008 Paper 1 Offline | p-Block Elements Question 53 | Chemistry

Joint Entrance Examination

Medical

Graduate Aptitude Test in Engineering

Civil Services

Defence

Staff Selection Commission

CBSE

IIT-JEE 2008 Paper 1 Offline

MCQ (More than One Correct Answer)

+4

-2

A solution of colourless salt H on boiling with excess NaOH produces a non-flammable gas. The gas evolution ceases after sometime. Upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt(s) H is(are):

A

NH$$_4$$NO$$_3$$

B

NH$$_4$$NO$$_2$$

C

NH$$_4$$Cl

D

(NH$$_4$$)$$_2$$SO$$_4$$

2

IIT-JEE 2006

MCQ (More than One Correct Answer)

+5

-1.25

The species present in solution when CO₂ is dissolved in water are

A

CO₂, H₂CO₃, $$HCO_3^-$$, $$CO_3^{2-}$$

B

$$H_2CO_3$$, $$CO_3^{2-}$$

C

$$CO_3^{2-}$$, $$HCO_3^-$$

D

CO₂, H₂CO₃

EXAM MAP

Joint Entrance Examination

JEE Main JEE Advanced WB JEE BITSAT MHT CET KCET COMEDK VITEEE AP EAPCET

Medical

NEET AIIMS

Graduate Aptitude Test in Engineering

GATE CSE GATE ECE GATE EE GATE ME GATE CE GATE PI GATE IN

Civil Services

UPSC Civil Service

Defence

NDA

Staff Selection Commission

SSC CGL Tier I

CBSE

Class 12