Questions

Q:

Which solution has the highest pH?

A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) B) 50.0 mL 0.0500 M sodium hydroxide, NaOH (aq)
C) 50.0 mL 0.0500 M nitric acid, HNO3 (aq) D) 50.0 mL 0.0500 M nitrous acid, HNO2 (aq)
 
Answer & Explanation Answer: A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq)

Explanation:

50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) has the highest pH value.

Sodium hydroxide and Calcium hydroxide are strong bases so they completely ionize in solution. Because they ionize at the same rate, and Calcium hydroxide has the higher pH calculated, then Calcium hydroxide, in fact, has the highest pH.

Nitric acid is a strong acid, so it completely ionizes in water. Whilst nitrous acid is a weak acid. Therefore, the nitric acid solution has the LOWEST ph.

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8 8208
Q:

Dronacharya Award Is Given To

A) Sports Editors B) Umpires
C) Sportsmen D) Coaches
 
Answer & Explanation Answer: D) Coaches

Explanation:

The Dronacharya Award, formally known as Dronacharya Award for Outstanding Coaches in Sports and Games, is sports training honour of the Republic of India. The award is named after Drona, often referred as "Dronacharya" or "Guru Drona", a character from the Sanskrit epic Mahabharata of ancient India.

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15 8203
Q:

Metals are generally ______.

I. Ductile

II. Malleable

III. Poor conductors of heat

A) Only I and II B) Only I and III
C) Only II and III D) All I, II and III
 
Answer & Explanation Answer: A) Only I and II

Explanation:
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1 8198
Q:

Which metal pollute the air of a big city?

A) Chromium B) Lead
C) Copper D) Zinc
 
Answer & Explanation Answer: B) Lead

Explanation:
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12 8196
Q:

The highest mountain peak of Chhotanagpur Plateau is ________.

 

A) Dhoopgarh B) Pachmarhi
C) Parasnath D) Parasnath
 
Answer & Explanation Answer: C) Parasnath

Explanation:
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Filed Under: Indian Geography
Exam Prep: Bank Exams

1 8193
Q:

In archery, what shape is the target

A) Squar B) Round
C) Triangular D) Rectangular
 
Answer & Explanation Answer: B) Round

Explanation:
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Filed Under: Sports

17 8187
Q:

why 8085 processor, is called an 8 bit processor?

Answer

Because 8085 processor is 8 bit ALU (arithmetic logic review). Similarly 8086 processor has 16 bit ALU.

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Subject: Hardware

7 8179
Q:

Which of these is not a function of the kidneys?

A) The kidneys regulate the plasma volume B) The kidneys help to regulate blood pressure
C) The kidneys help control the rate of red blood cell production D) The kidneys deactivate vitamin D and stimulate the activity of osteoclasts
 
Answer & Explanation Answer: D) The kidneys deactivate vitamin D and stimulate the activity of osteoclasts

Explanation:

The kidneys deactivate vitamin D and stimulate the activity of osteoclasts is wrong among the functions of kidneys.

 

The kidneys are two bean-shaped organs in the renal system. They help the body pass waste as urine. They also help filter blood before sending it back to the heart.

 

The kidneys perform many crucial functions, including:

  • maintaining overall fluid balance.
  • regulating and filtering minerals from the blood.
  • filtering waste materials from food, medications, and toxic substances.
  • creating hormones that help produce red blood cells, promote bone health, and regulate blood pressure.
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10 8173