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Deepak Rock
@deepak-rock
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Joined: Aug 6, 2021
Last seen: Sep 10, 2021
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Topics: 1742 / Replies: 303
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Topic
Here are some results of solutions tested with universal indicator paper: Sulphuric acid: Red Metal polish: Dark blue Washing-up liquid: Yellow Milk of magnesia: Light blue
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 105
Topic
Potatoes grow well on Anhad’s farm which has soil with a pH of 5.5. An had decided to add lot of lime to soil so that he can grow broccoli on the same farm :
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 64
Topic
The pH values of five solutions A, B, C, D and E are given below: A 1 B 5 C 7 D 11 E 13 Which solution is
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 90
Topic
Which of the following elements would form oxides which would indicate pH values less than seven, using moist pH paper? Magnesium, Carbon, Sulphur, Hydrogen, Copper
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 99
Topic
Which one of the following is the wrong assumption of kinetic theory of gases?
4 years ago
Forum
States of Matter
Replies: 0
Views: 303
Topic
Which of the following assumption of kinetic molecular theory states that gases do not have fixed shape?
4 years ago
Forum
States of Matter
Replies: 0
Views: 340
Topic
The initial volume of a gas cylinder is 750.0 mL. If the pressure of gas inside the cylinder changes from 840.0 mm Hg to 360.0 mm Hg, the final volume the gas will be:
4 years ago
Forum
States of Matter
Replies: 0
Views: 117
Topic
When does a gas deviate the most from its ideal behaviour? (a) At low pressure and low temperature (b) At low pressure and high temperature
4 years ago
Forum
States of Matter
Replies: 0
Views: 301
Topic
When 2 g of a gas A is introduced into an evaluated flask kept at 25°C, the pressure is found to be one atmosphere.
4 years ago
Forum
States of Matter
Replies: 0
Views: 245
Topic
Three different gases X, Y and Z of molecular masses 2, 16 and 64 were enclosed in a vessel at constant temperature till equilibrium is reached. Which of the following statement is correct?
4 years ago
Forum
States of Matter
Replies: 0
Views: 337
Topic
The volume of 0.0168 mol of O2 obtained by decomposition of KClO3 and collected by displacement of water is 428 mL at a pressure of 754 mm Hg at 25 °C.
4 years ago
Forum
States of Matter
Replies: 0
Views: 390
Topic
600 c.c. of a gas at a pressure of 750 mm of Hg is compressed to 500 c.c. Taking the temperature to remain constant, the increase in pressure is
4 years ago
Forum
States of Matter
Replies: 0
Views: 264
Topic
For a real gas (mol. mass = 60) if density at critical point is 0.80 g/cm^3 and its
4 years ago
Forum
States of Matter
Replies: 0
Views: 246
Topic
Which gas shows real behaviour? (a) 16 g O2 at 1 atm and 273 K occupies 11.2 L (b) 1 g H2 in 0.5 L flask exerts pressure of 24.63 atm at 300 K
4 years ago
Forum
States of Matter
Replies: 0
Views: 360
Topic
Which of the following volume (V) - temperature (T) plots represents the behaviour of one mole of an ideal gas at one atmospheric pressure?
4 years ago
Forum
States of Matter
Replies: 0
Views: 160
Topic
Densities of two gases are in the ratio 1:2 and their temperatures are in the ratio 2:1 then the ratio of their respective pressures is
4 years ago
Forum
States of Matter
Replies: 0
Views: 125
Topic
A milkman adds a very small amount of baking soda to fresh milk. (a) Why does he shift the pH of the fresh milk from 6 to slightly alkaline? (b) Why does this milk take a long time to set as curd?
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 89
Topic
What effect does the concentration of H^+ (aq) ions have on the nature of a solution? (b) What effect does the concentration of H^– ions have on the nature of a solution?
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 83
Topic
What happens when zinc granules are heated with sodium hydroxide solution? Write equation of the reaction which takes place. (b) What happens when bases react with non-metal oxides?
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 101
Topic
Define an acid and a base. Give two examples of each. (b) Give the names and formulae of two strong bases and two weak bases.
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 101
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