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Recent questions and answers in Chemistry

Questions >> SAT >> Chemistry

Chemistry

Gases and gas laws

Oxidation & Reduction

Stoichiometry and the mole concept

Atomic Structure

Liquids, solids and phase change

Chemical reactions and thermochemistry

chemical formulae

chemical equilibrium

Acids and Bases

Among the following the maximum covalent character is shown by the compound

answered Jun 15, 2021 by pixelmarkent

1 answer

Which one will change from red litmus to blue?

answered Jun 15, 2021 by pixelmarkent

1 answer

The process of heating a liquid mixture to form vapours and then cooling the vapours to get pure component is called

answered Oct 9, 2020 by magavali9225

2 answers

Which among the following formation is not an example of Covalent bond?

answered Sep 3, 2020 by 201.00220.11.0232

2 answers

How much copper can be obtained from 100 g of copper sulphate $(CuSO_4)?$ (Atomic mass of $Cu=63.5\;amu$)

answered Feb 14, 2019 by meena.clay6

1 answer

A Strong acid is same as concentrated acid. State true or false

answered Jan 8, 2019 by meena.clay6

1 answer

Match the following with correct response. </br> (1) Metal oxides (2) Non-metal oxides (3) Salts (4) Neutral Basses </br> (A) Hydroxyl Irons (B) Acidic (C) basic (D) Hydroxyl Ions

answered Jan 8, 2019 by meena.clay6

1 answer

A beaker full of acid is added to a beaker full of base. The pH of the base will:

answered Jan 8, 2019 by meena.clay6

1 answer

A solution with a pH of 11 has a $H^{+}$ concentration of:

answered Jan 8, 2019 by meena.clay6

1 answer

An unknown substance is added to a solution and the pH increases. The substance is:

answered Jan 8, 2019 by meena.clay6

1 answer

Acids increase the concentration of what in water?

answered Jan 8, 2019 by meena.clay6

1 answer

Match the following with correct response. </br> (1) Sodium hydroxide (2) Potassium hydroxide (3) Calcium hydroxide (4) Lactic acid </br> (A) Antacid (B) caustic soda (C) curd (D) caustic potash

answered Jan 8, 2019 by meena.clay6

1 answer

What will be the product when $HNO_3$ reacts with $NH_4OH$ ?

answered Jan 8, 2019 by meena.clay6

1 answer

Find the odd one out:

answered Jan 8, 2019 by meena.clay6

1 answer

Select the one which is neither an acid nor base

answered Jan 8, 2019 by meena.clay6

1 answer

Select the one which is wrongly mapped

answered Jan 8, 2019 by meena.clay6

1 answer

Identify the salt which contains both negative or positive ions.

answered Jan 8, 2019 by meena.clay6

1 answer

Which acid is weak among mineral acids?

answered Jan 8, 2019 by meena.clay6

1 answer

Which of the following statements are correct abount an aqueous solution of an acid and of a base? </br> A. lower the pH weaker the base </br> B. Lower the pH stronger the base</br> C. higher the pH stronger the acid</br> D. higher the pH weaker the acid</br>

answered Jan 8, 2019 by meena.clay6

1 answer

Which acid completely dissociates when dissolved in water?

answered Jan 8, 2019 by meena.clay6

1 answer

What volume of $0.200 M NaOH(aq)$ is needed to neutralize $40.0\; mL$ of a $0.100\; M HCl(aq)$?

answered Jan 8, 2019 by meena.clay6

1 answer

According to the Bronsted-Lowry theory, a base can

answered Jan 8, 2019 by meena.clay6

1 answer

A substance is dissolved in water and the only positive ions in the solution are $H1^{+}$ ions. This substance is

answered Jan 8, 2019 by meena.clay6

1 answer

Find the pH of a 0.002 N acetic acid solution, if it is $2.3 \%$ ionised at a given dilution.

answered Jan 8, 2019 by meena.clay6

1 answer

The hydrogen ion concentration of a solution is 0.001 M. What will be the hydroxyl ion concentration of solution?

answered Jan 8, 2019 by meena.clay6

1 answer

A liquid is considered an acid if it has a lot of __________.

answered Jan 8, 2019 by meena.clay6

1 answer

KOH is used in making of

answered Jan 8, 2019 by meena.clay6

1 answer

Name the substance that on treatment with chlorine yields bleaching powder.

answered Jan 8, 2019 by meena.clay6

1 answer

Zinc reacts with an acid as well as with a base to liberate hydrogen. On the basis of this what should be the nature of the zinc metal?

answered Jan 8, 2019 by meena.clay6

1 answer

A student was asked to collect apparatus from lab store, for doing experiment of pH of given sample. Identify the article which he is not supposed to pick.

answered Jan 8, 2019 by meena.clay6

1 answer

The chemical formula of caustic potash is

answered Jan 8, 2019 by meena.clay6

1 answer

The pH of a solution with a hydrogen ion concentration of $1 \times 10^{-3}$ is

answered Jan 8, 2019 by meena.clay6

1 answer

A substance Y turns phenolphthalein colorless. It will

answered Jan 8, 2019 by meena.clay6

1 answer

Which of the following statements are correct about an aqueous solution of an acid and of a base?

answered Jan 8, 2019 by meena.clay6

1 answer

Methyl orange is

answered Jan 8, 2019 by meena.clay6

1 answer

Which of the following is a strong acid?

asked Jan 8, 2019 by meena.clay6

0 answers

Which of the following is made up of bases?

answered Jan 8, 2019 by meena.clay6

1 answer

Which of the following is a strong acid?

answered Jan 8, 2019 by meena.clay6

1 answer

Which acid completely dissociates when dissolved in water?

answered Jan 8, 2019 by meena.clay6

1 answer

Which is a cause of acid precipitation?

answered Jan 8, 2019 by meena.clay6

1 answer

The soil is removed from the natural site, is treated with acid to leach the heavy metals out, then with a base to neutralize the soil and cause the heavy metals to precipitate out.” What process does this statement describe?

answered Jan 8, 2019 by meena.clay6

1 answer

What is the precipitate that sometimes forms during an acid-base neutralization?

answered Jan 8, 2019 by meena.clay6

1 answer

PH of soils can be controlled through

answered Jan 8, 2019 by meena.clay6

1 answer

Which of the following is formed by the reaction of an acid with a base?

answered Jan 8, 2019 by meena.clay6

1 answer

Which of the following statement are correct <br> A. chemical name of bleaching powder is calcium oxychloride<br> B. Bleaching powder is used for sterilization of drinking water <br> C. Bleaching powder is alkaline in nature hence it is used as antacid <br> D. Bleaching powder is manufactured by Hasenclever?s plant

answered Jan 8, 2019 by meena.clay6

1 answer

Which of the following is made up of bases?

answered Jan 8, 2019 by meena.clay6

1 answer

$H_2SO_4$ is a strong acid because it is

answered Jan 7, 2019 by meena.clay6

1 answer

The hydronium ion is represented as

answered Jan 7, 2019 by meena.clay6

1 answer

The difference between HCl and $HC_2H_3O_2$ as acids is

answered Jan 7, 2019 by meena.clay6

1 answer

Which of the following is made up of bases

answered Jan 7, 2019 by meena.clay6

1 answer

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