Q:

Which type of Ethanol is made from sources like molasses, sugarcane, sugar beet, sorghum and edible oil seeds?

A) 2G ethanol	B) 1G ethanol
C) Clean ethanol	D) 3G ethanol

Answer & Explanation Answer: B) 1G ethanol

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Q:

Aluminium oxide is ___ in nature.

A) amphoteric	B) acidic
C) neutral	D) basic

Answer & Explanation Answer: A) amphoteric

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Q:

All isotopes of the same element have ____________

A) different atomic numbers and different atomic mass	B) different atomic numbers and the same atomic mass
C) the same atomic number but different atomic masses	D) the same atomic number and the atomic mass

Answer & Explanation Answer: C) the same atomic number but different atomic masses

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Q:

Sphalerite is an ore/mineral of

A) Mercury	B) Molybdenum
C) Silver	D) Zinc

Answer & Explanation Answer: D) Zinc

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Q:

Which of the following is a CORRECT statement?

A) Only compounds are pure substance	B) Compounds are impure substance
C) Only elements are pure substance	D) Both compounds and elements are pure substance

Answer & Explanation Answer: D) Both compounds and elements are pure substance

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Q:

Intestinal bacteria synthesizes which of the following in the human body?

A) Vitamin K	B) Proteins
C) Fats	D) Vitamin D

Answer & Explanation Answer: A) Vitamin K

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Q:

___ has naked seeds.

A) Pinus	B) Lemon
C) Carrot	D) Wheat

Answer & Explanation Answer: A) Pinus

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Filed Under: Biology
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Q:

Which is largest peninsular river in India?

A) Krishna	B) Godavari
C) Cauvery	D) Mahanadi

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