Telegram group: T.me/BBCNOUN
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CHM202
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1. What is the second step in the sample treatment chart?

	      sampling

	      sample treatment

	--->> sample preparation

	      aliquot

2. Test substance is called?

	      sample

	      composite

	      grab

	--->> analyte

3. The test substance is also known as?

	      titrant

	--->> titrand

	      reagent

	      titration

4. The method of sampling selection which aim at reducing the samples without creating a systematic bias is called?

	--->> coning

	      pasting

	      chasen

	      pooled

5. Which of the following is not a chain of custody procedure?

	      sample seals

	      disposal

	      sample label

	--->> sample time

6. Which of the following apparatus is used to measure titrand?

	      burette

	--->> pipette

	      conical flask

	      test tube

7. The single samples collected at a specific spot at a site over a short period of time is called?

	      stratified

	      random samples

	      composite samples

	--->> grab sample

8. The analytical technique that deals with reaction between measured volume of a reagent against the test substance in a stochiometric manner is?

	--->> volumetric analysis

	      gravimetric analysis

	      thermogravimetry

	      precipitation

9. Which of the following is not a major activities during the preparation of sample?

	      concentration

	      dissolution

	      mixing

	--->> heating

10. Conversion of accessible sample matrices to the form which is accessible to instrument is called?

	      decontamination

	      heating

	--->> decomposition

	      concentrating