Chemistry Class 10th MCQs

A reaction which is never goes to completion is known as reversible reaction. Reversible reaction is represented by:

1. Doted lines
2. Single arrow
3. Double arrow
4. Double straight line

The sample may be solid, liquid, gas or a _______ in qualitative analysis:

1. Mixture
2. Compound
3. Differentiate
4. Substance

Analysis deals with the identification of presence of functional groups in compounds is:

1. Physical qualitative analysis
2. Analytical qualitative analysis
3. Organic qualitative analysis
4. Inorganic qualitative analysis

Flame test of Copper Halide with bluish-green color identify the presence of:

1. Halogen
2. Hydrogen
3. Copper
4. B and C

The physical methods used to measure physical properties is called:

1. Combustion analysis method
2. Volumetric analysis method
3. Atomic emission spectroscopy method
4. Gravimetric analysis method

The error caused by improper functioning of instrument is:

1. Determinant Error
2. Systematic Error
3. Indeterminant
4. A and B

An agreement between a measured value and the accepted true value:

1. Error
2. Accuracy
3. Precision
4. All of these

Spectroscopy is the interaction of light with:

1. Liquid
2. Solid
3. Gas
4. Matter

The Gas is mobile phase in:

1. Liquid chromatography
2. Solid chromatography
3. Gas chromatography
4. None of these

It used to assess concentration or amount of given atomic, molecular or ionic chemical:

1. Chromatography
2. Conductometry
3. Spectroscopy
4. Potentiometry

Soap is the term for a salts of a:

1. Carboxylic acid
2. Citric acid
3. Sulphuric acid
4. Fatty acid