1
JEE Main 2023 (Online) 11th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

$$25 \mathrm{~mL}$$ of silver nitrate solution (1M) is added dropwise to $$25 \mathrm{~mL}$$ of potassium iodide $$(1.05 \mathrm{M})$$ solution. The ion(s) present in very small quantity in the solution is/are :

A
$$\mathrm{I^-}$$ only
B
$$\mathrm{K^+}$$ only
C
$$\mathrm{Ag^+}$$ and $$\mathrm{I^-}$$ both
D
$$\mathrm{NO_3^-}$$ only
2
JEE Main 2023 (Online) 31st January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The incorrect statement for the use of indicators in acid-base titration is :
A
Phenolphthalein is a suitable indicator for a weak acid vs strong base titration.
B
Methyl orange may be used for a weak acid vs weak base titration.
C
Methyl orange is a suitable indicator for a strong acid vs weak base titration.
D
Phenolphthalein may be used for a strong acid vs strong base titration.
3
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

When the hydrogen ion concentration [H$$^+$$] changes by a factor of 1000, the value of pH of the solution __________

A
decreases by 2 units
B
increases by 2 units
C
decreases by 3 units
D
increases by 1000 units
4
JEE Main 2022 (Online) 29th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

$$200 \mathrm{~mL}$$ of $$0.01 \,\mathrm{M} \,\mathrm{HCl}$$ is mixed with $$400 \mathrm{~mL}$$ of $$0.01 \,\mathrm{M} \,\mathrm{H}_{2} \mathrm{SO}_{4}$$. The $$\mathrm{pH}$$ of the mixture is _________.

Given: $$\log {2}=0.30, \log 3=0.48, \log 5=0.70, \log 7=0.84, \log 11=1.04$$

A
1.14
B
1.78
C
2.34
D
3.02
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