Question # 1

Earth has natural systems.

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One

Two

Three

Four

A base is a substance which neutralizes and acid. Which of these substances is not a base?

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aqueous ammonia

Sodium chloride

Sodium carbonate

Calcium oxide

Which of the following is reducing sugar?

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Glucose

Maltose

Sucrose

Starch

Formula of Decane is.

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C₁₀H₂₀

C₁₀H₂₂

C₁₀ H₄

C₁₀H₁₆

Gelatin protein is found in.

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Blood

Skin

Heart

Bones

When Bronsted and Lowry put forward acid base concept?

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1913

1923

1933

1943

Which one of the following diseases severe diarrhea and can be fatal?

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Joundice

Cholera

Dysentery

Typhoid

Mesophere extend forms 50 km to:

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50 km

12 km

60 km

85 km

Infrared radiations emitted by the Earth are absorbed by.

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CO₂ and H₂O

N₂ and O₂

CO₂and N₂

O₂and CO₂

The value of constant of ionic product of water Kw at 25 C.

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1.0 x 10^-4

1.0 x 10¹⁴

1.0 x 10^-4

1.0 x 10⁴

A salt is not composed of

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A metallic cation

Non -metallic anion

an anion of a base

An anion of an acid

Citric acid is present in

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Citrus fruits

Sour milk

Rancid butter

Apple

What is pOH of 0.01 M solution of HCl?

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1

4

12

13

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