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 8130

Q:

The main element used in the vulcanisation of rubber is

A) nickel	B) copper
C) sulphur	D) graphite

Answer & Explanation Answer: C) sulphur

Explanation:

In vulcanization, cruder rubber is heated with 3% sulphur at about for $120^{0} C$ for 2-3 hours.

Vulcanised rubber is a vastly improved product.

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9 8123

Q:

Water covers _______________ % of the Earth’s surface.

A) 95	B) 75
C) 55	D) 35

Answer & Explanation Answer: B) 75

Explanation:

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3 8114

Q:

A user reports a PC problem to the Service Desk. A Service Desk representative determines that the PC is defective and indicates that according to the services catalogue, the PC will be replaced within three hours. Which ITIL process is responsible for having this user's PC replaced within three hours?

A) Availability Management	B) Change Management
C) Configuration Management	D) Service Level Management

Answer & Explanation Answer: B) Change Management

Explanation:

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5 8103

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 8103

Q:

What is the location of India's first elevated Urban Expressway?

A) Mumbai to Pune	B) Delhi to Gurugram
C) Chennai to Bengaluru	D) Lucknow to Allahabad

Answer & Explanation Answer: B) Delhi to Gurugram

Explanation:

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1 8102

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.

Workspace

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Subject: Hardware

7 8101

Q:

During Kargil War, Who was the Indian Army chief of staff ?

A) Ved Prakash Malik	B) Sankar Roy Chowdary
C) Nirmal chandar Vij	D) Sundar rajan Padmanabhan

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