Q:

What is the gram formula mass of $K_{2} {CO}_{3}$ ?

A) 147	B) 138
C) 129	D) 116

Answer & Explanation Answer: B) 138

Explanation:

The gram formula mass of a compound is nothing but the molar mass.

The molar mass of K2CO3 (Potassium Carbonate) is given by

Atomic weights of individual elements are

K (Potassium) = 39 g

C (Carbon) = 12 g

O (Oxygen) = 16 g

Hence, that of K2CO3 = 39(2) + 12 + 16(3)

= 78 + 12 + 48

= 138.

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Filed Under: Chemistry
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2 3173

Q:

Which of the following represents 'I' in the abbreviation IRDP

A) Integrated	B) Indian
C) Insurance	D) Internal

Answer & Explanation Answer: A) Integrated

Explanation:

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Filed Under: Indian Economy

1 3173

Q:

Ampere second could be the unit of

A) Power	B) Energy
C) Conductance	D) Charge

Answer & Explanation Answer: C) Conductance

Explanation:

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Filed Under: Physics
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4 3172

Q:

The time complexity of sequential search is

A) O(n)	B) O(2n)
C) O(n^2)	D) None

Answer & Explanation Answer: A) O(n)

Explanation:

The time complexity of sequential search is O(n)

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Filed Under: Database
Job Role: Database Administration

0 3169

Q:

Raman Megassesay award was established in honour of which of the following country's president ?

A) Thailand	B) Vietnam
C) Indonesia	D) Philippines

Answer & Explanation Answer: D) Philippines

Explanation:

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Filed Under: Honours and Awards

4 3169

Q:

Which of the following year is considered as the first year of the Muslim calender ?

A) AD 622	B) AD 671
C) AD 571	D) AD 651

Answer & Explanation Answer: A) AD 622

Explanation:

Muhammad had to leave Mecca his birth place where he started preaching and take refuse in Medina, where he was given a warm welcome. This event took place in AD 622 and is known as the year of the Hijira, or migration, which became the first year of the Muslim Calendar.

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Filed Under: World History

3 3168

Q:

What element is found in all organic compounds?

A) Hydrogen	B) Calcium
C) Nitrogen	D) Carbon

Answer & Explanation Answer: D) Carbon

Explanation:

Carbon is found in all organic compounds.

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Filed Under: Chemistry
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0 3168

Q:

In which city Indian Railways has installed Asia’s largest Solid State Interlocking (SSI) system?

A) Kolkata	B) Lucknow
C) Hyderabad	D) Kharagpur

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