Q:

Which statement describes the acid found in vinegar acetic acid ?

A) It feels slippery	B) It reacts with Mg to produce H2
C) It tastes bitter	D) It releases OH- in a solution

Answer & Explanation Answer: B) It reacts with Mg to produce H2

Explanation:

Acid which is present in vinegar is approximately 5 % of acetic acid. This can be confirmed by testing the vinegar with magnesium which gives out hydrogen as a gas.

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Q:

Which of the statements given below are correct?

A) Elina Svitolina won the Tennis 2017 Italian Open Women's Singles.

B) Lewis Hamilton won the Formula One 2017 Italian Grand Prix.

C) In 2017, James Harden played for the NBA team Milwaukee Bucks.

A) Both A and C	B) Both B and C
C) Both A and B	D) None of these

Answer & Explanation Answer: C) Both A and B

Explanation:

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Q:

Guess the word?

5_letter1528105565.jpg image

Answer

SHORT is the required five letter word, which becomes SHORTER when two letters 'ER' are added to it.

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Q:

Who is the Chairman of the Rajya Sabha?

A) The president	B) The Vice-President
C) The Prime Minister	D) The Speaker

Answer & Explanation Answer: B) The Vice-President

Explanation:

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Q:

Lift was invented by

A) Otis	B) Domagk
C) Lee De Forest	D) None of these

Answer & Explanation Answer: A) Otis

Explanation:

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Q:

What is the Lithosphere made of?

A) Soil	B) Rocks
C) Dirt	D) Water

Answer & Explanation Answer: B) Rocks

Explanation:

Lithoshpere are composed of rocks in the crust and upper mantle that behave as brittle solids. The lithosphere is Earth's outermost layer.

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Q:

President Pranab Mukherjee inaugurated the biggest river festival of India in 2017, Namami Brahmaputra, in which of the following states ?

A) Arunachal Pradesh	B) Assam
C) Orissa	D) Tripura

Answer & Explanation Answer: B) Assam

Explanation:

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Q:

The crop that has the highest photosynthetic activity -

A) Sugarcane	B) Wheat
C) Cotton	D) Rice

Answer & Explanation Answer: A) Sugarcane

Explanation:

Corn, sugar cane, and sorghum are C4 plants. These plants are economically important in part because of their relatively high photosynthetic efficiencies compared to many other crops.

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