Q:

In case of a standard hydrogen electrode

A) absolute electrode potential is not zero	B) absolute electrode potential is zero
C) both absolute and standard electrode potential values are zero	D) electrode potential is zero only at 25 deg C

Answer & Explanation Answer: A) absolute electrode potential is not zero

Explanation:

The Standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials. Its absolute electrode potential is estimated to be 4.44 ± 0.02 V at 25 °C, but to form a basis for comparison with all other electrode reactions, hydrogen's standard electrode potential (E0) is declared to be zero volts only at 298.

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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

Any new participant in some activity.

A) Neophyte	B) Holophyte
C) Mesophyte	D) Epiphyte

Answer & Explanation Answer: A) Neophyte

Explanation:

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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
Practice makes a man perfect

A) Perfection demands patience	B) Any problem can be solved if you are willing to try many times
C) Regular activity is the way to become proficient in it	D) It takes a long time to form a good habit

Answer & Explanation Answer: C) Regular activity is the way to become proficient in it

Explanation:

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Q:

Who has won the Men's & Women's singles event at the 83rd Senior National Badminton Championships 2019?

A) Parupalli Kashyap & Saina Nehwal	B) Sourabh Verma & Elise Merten
C) Sourabh Verma & Saina Nehwal	D) Parupalli Kashyap & Elise Merten

Answer & Explanation Answer: C) Sourabh Verma & Saina Nehwal

Explanation:

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Q:

Data collected to date indicate that

A) New species of bacteria may be discovered in wild animals.	B) Humans and marine mammals cannot be infected by the same pathogens.
C) Marine mammals do not get infectious diseases	D) None of the above

Answer & Explanation Answer: D) None of the above

Explanation:

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Q:

Which of the following is not a benefit of swimming?

A) full body exercise	B) burn less than 400 calories per hour
C) joints supported in water	D) good exercise for cross training

Answer & Explanation Answer: B) burn less than 400 calories per hour

Explanation:

Actually by swimming a person can easily burn more than 450 calories upto 920 calories per an hour. So, burn less than 400 calories per hour is not correct regarding swimming.

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Q:

Find the resistance (in mega Ω) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200 Ωm.

A) 40	B) 4000
C) 80	D) 2000

Answer & Explanation Answer: A) 40

Explanation:

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Q:

The common name of hydrogen peroxide is

A) borax	B) bleach (liquid)
C) baking soda	D) gypsum

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