Laboratory | MCQs

Explanation

• Microscopes are used to magnify and observe tiny objects.
• Such as microorganisms, cells, and tiny structures.
• That are not visible to the naked eye.

Explanation

ٹیسٹ کی تیاری کے لیے بار بار پیپرز میں آنے والے سپیلنگ ضرور یاد کریں

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Explanation

A microscope is used to observe atoms due to their minute size.

While a telescope is used to view distant planets, highlighting their tools for specific observations.

Explanation

Calcium chloride (CaCl₂) is a hygroscopic substance, meaning it absorbs moisture from the air.

It is commonly used as a drying agent in desiccators to keep the environment moisture-free.

Explanation

In qualitative analysis, a sample can be a solid, liquid, gas, or a mixture.

A mixture is a physical combination of two or more substances, where each substance retains its chemical properties.

Explanation

Water is made up of two elements, namely oxygen and hydrogen.

پانی دو عناصر سے بنتا ہے، یعنی آکسیجن اور ہائیڈروجن۔

Elements are pure chemical substances consisting of one type of atom.

Oxygen (O) and hydrogen (H) are both chemical elements that combine to form water (H₂O).

Explanation

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Explanation

• Measuring cylinders are designed to measure the volume of liquids.
• It allowing for precise measurements in scientific experiments and procedures.

Explanation

• Litmus paper is a simple and effective way to test whether a substance is an acid or a base.
• It turns red in acidic solutions and blue in basic solutions.

Explanation

• Filtration is the process of separating an insoluble solid from a liquid by passing the mixture through a filter paper or a porous material.
• The solid particles are retained by the filter.
• While the liquid passes through, resulting in a clear separation of the two.