Plz ans no.2 full
2 .     G i v e   c h e m i c a l   t e s t / t e s t s   t o   d i s t i n g u i s h   b e t w e e n   t h e   f o l l o w i n g   g a s e s   ( i )   A m m o n i a   a n d   h y d r o g e n   c h l o r i d e .   ( i i )   H y d r o g e n   c h l o r i d e   a n d   h y d r o g e n   s u l p h i d e .   ( i i i )   H y d r o g e n   s u l p h i d e   c a r b o n   d i o x i d e .   ( i v )   C a r b o n   d i o x i d e   a n d     s u l p u r   d i o x i d e .   ( v )   S u l p h u r   d i o x i d e     a n d   c h l o r i n e .   ( v i )   C h l o r i n e   a n d   n i t r o g e n   d i o x i d e . ( v i i )   H y d r o g e n     a n d   o x y g e n . ( v i i i )   O x y g e n   a n d   a m m o n i a .

Dear Student 
1- Ammonia turns moist red litmus blue and Hydrogen Chloride turns moist blue litmus red
 2- HCl gives COgas with Na2CO, And H2S gas smells like rotten egg.
i gave the answer of your 2 queries you can ask your another queries in another thread.
regards

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i. Ammonia turns moist red litmus blue and Hydrogen Chloride turns moist blue litmus red .
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