Questions

Q:

Which is a characteristic of a Mixture?

A) a pure substance B) chemically comined
C) they can be mixed in some fixed ratio D) it is either homogenous or heterogenous
 
Answer & Explanation Answer: D) it is either homogenous or heterogenous

Explanation:

A mixture is the blending of two or more dissimilar substances.

 

Characteristics of a Mixture:

1. It has No formula.

2. It is an impure sustance

3. They can be mixed in any ratio.

4. The properties of the mixture are the properties of its constituents.

5. Constituents can e easily seperated by physical methods.
eg: Heating, Drying, Crystallization, Distillation etc...

6. It is either homogenous or heterogenous.

 

A major characteristic of mixtures is that the materials do not chemically combine. Mixtures can be divided into those that are evenly distributed (homogeneous) and those that aren't (heterogeneous).

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Q:

Which option is an example of expository writing?

A) A novel about a young girl caught up in the Civil War B) A nonfiction book about the history of the Civil War
C) A poem written about the soldiers who fought in the Civil War D) A movie review of a dramatic film about the Civil War
 
Answer & Explanation Answer: B) A nonfiction book about the history of the Civil War

Explanation:
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Q:

Autocorrect was originally designed to replace

A) Misspelled words B) Grammatically incorrect
C) Repetitive words D) All of the above
 
Answer & Explanation Answer: A) Misspelled words

Explanation:

autocorrect_was_originally_designed_to_replace1561613833.jpg image

 

Autocorrect was originally designed to replace Misspelled words. Its purpose is as part of the spell checker to correct common spelling or typing errors, saving time for the user. It is commonly found in word processors and text editing interfaces for smartphones, computers, etc.

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Q:

The spring constant of a spring depends on its

A) length only B) material only
C) length and its diameter D) thickness, its diameter and its material
 
Answer & Explanation Answer: D) thickness, its diameter and its material

Explanation:

In dealing with a coil spring the spring constant will depend on the stiffness of the spring material, the thicknessof the wire from which the spring is wound and, diameterof the turns of the coil, the number of turns per unit length and the overall length of the spring.

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Filed Under: Physics
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Q:

The folk dance of which state is Kargam?

A) Tamil Nadu B) Andhra Pradesh
C) Kerala D) Odisha
 
Answer & Explanation Answer: A) Tamil Nadu

Explanation:

Kargam is the folk dance of Tamil Nadu state.

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Q:

Who was the first to sail round the world ?

A) Francis Drake B) Columbus
C) Magellan D) Vasco da Gama
 
Answer & Explanation Answer: C) Magellan

Explanation:

Magellan was a Portuguese sailor who was the first to sail round the world.

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Filed Under: World History

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Q:

Stainless steel contains steel and 

A) manganese B) vanadium
C) nickel D) chromium
 
Answer & Explanation Answer: D) chromium

Explanation:

Stainless steel contains 18% chromium and 82% steel

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Filed Under: Chemistry

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Q:

Antisnake venom is prepared by 

A) Pasteur institute B) Hoffkine's institute
C) Birla's Institute D) Indian science Institute
 
Answer & Explanation Answer: B) Hoffkine's institute

Explanation:

Antisnake venom: In the Hoffkine Institute at Bombay snake venom in mild dose is injected into horses and the horses are induced to produce anti-venom bodies. These are extracted and used in cases of snake bites.

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Filed Under: Biology

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