1
JEE Main 2023 (Online) 13th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
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What happens when methane undergoes combustion in systems A and B respectively?

JEE Main 2023 (Online) 13th April Evening Shift Chemistry - Thermodynamics Question 65 English

A
System A System B
Temperature falls Temperature rises
B
System A System B
Temperature rises Temperature remains same
C
System A System B
Temperature falls Temperature remains same
D
System A System B
Temperature remains same Temperature rises
2
JEE Main 2023 (Online) 13th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In the wet tests for detection of various cations by precipitation, $$\mathrm{Ba}^{2+}$$ cations are detected by obtaining precipitate of

A
$$\mathrm{BaSO}_{4}$$
B
$$\mathrm{Ba}(\mathrm{OAc})_{2}$$
C
$$\mathrm{BaCO}_{3}$$
D
$$\mathrm{Ba}(\mathrm{ox})$$ : Barium oxalate
3
JEE Main 2023 (Online) 13th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Compound $$\mathrm{A}$$ from the following reaction sequence is:

JEE Main 2023 (Online) 13th April Evening Shift Chemistry - Compounds Containing Nitrogen Question 64 English

A
Benzoic acid
B
Phenol
C
Salicylic acid
D
Aniline
4
JEE Main 2023 (Online) 13th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The total number of stereoisomers for the complex $$\left[\mathrm{Cr}(o x)_{2} \mathrm{ClBr}\right]^{3-}$$ (where $$o x=$$ oxalate) is :

A
1
B
3
C
2
D
4
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