Q:

The pH of a solutiion is 3. When its pH changes to 6, then H+ ion concentration

A) increases 2 times	B) increases 3 times
C) decreases 1000 times	D) decreases 100 times

Answer & Explanation Answer: C) decreases 1000 times

Explanation:

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Filed Under: Chemistry
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Q:

What is the chemical name of chalk?

A) Calcium Sulphate	B) Calcium Nitrate
C) Calcium Carbonate	D) Calcium Phosphide

Answer & Explanation Answer: C) Calcium Carbonate

Explanation:

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Q:

Read the sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence. If the given sentence is correct as it is, the answer is ‘No error’. Ignore the errors of punctuation, if any.

In such delicate matters,/ we often take/ his advice as he has/ been effectively handling such cases for a decade.

A) In such delicate matters	B) We often take
C) His advice as he has	D) Been effectively handling such cases for a decade

Answer & Explanation Answer:

Explanation:

There is no error in the sentence.

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Filed Under: English

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Q:

In which system is the central government weakest?

A) confederate government	B) representative government
C) unitary government	D) federal government

Answer & Explanation Answer: A) confederate government

Explanation:

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Filed Under: Indian Politics
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Q:

Who of the following was the last Governor General of Bengal?

A) William Bentinck	B) Warren Hastings
C) Lord Canning	D) Lord Wellesley

Answer & Explanation Answer: A) William Bentinck

Explanation:

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Filed Under: General Awareness
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Q:

_________________ is a measure of the moisture in air.

A) Density	B) Viscosity
C) Impurity	D) Humidity

Answer & Explanation Answer: D) Humidity

Explanation:

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Filed Under: Physics
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Q:

In the equation of motion $2 as = v^{2} - u^{2}$ , s represents _________________.

A) speed	B) displacement
C) velocity	D) acceleration

Answer & Explanation Answer: B) displacement

Explanation:

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Q:

The simplification value of $\frac{\sqrt[3]{7}}{\sqrt{5} + \sqrt{2}} - \frac{\sqrt[5]{5}}{\sqrt{2} + \sqrt{7}} + \frac{\sqrt[2]{2}}{\sqrt{7} + \sqrt{5}}$ is

A) 0	B) 1
C) 5	D) 6

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