NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY
307073
The least count of an instrument is \(0.01 \mathrm{~cm}\). Taking all precautions, the most possible error in the measurement can be
1 \(0.005 \mathrm{~cm}\)
2 \(0.01 \mathrm{~cm}\)
3 \(0.0001 \mathrm{~cm}\)
4 \(0.1 \mathrm{~cm}\)
Explanation:
As we know that least count of an instrument is equal to the most possible error of the instrument, hence most possible error of the instrument will be \(0.01 \mathrm{~cm}\).
307075
Assertion : Significant figures for 0.200 is 3 where as for 200 it is 1. Reason : Zero at the end or right of a number are significant provided they are not on the right side of the decimal point.
1 If both Assertion & Reason are true and reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
Explanation:
Assertion is true but Reason is false. 0.200 contains 3 while 200 contains only one significant figure because zero at the end or right of a number are significant provided they are on the right side of the decimal point.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY
307076
Which of the following is wrong?
1 1.234 is rounded off to 1.23
2 1.236 is rounded off to 1.24
3 1.235 is rounded off to 1.23
4 1.225 is rounded off to 1.22
Explanation:
When the number to be dropped is equal to 5 , the preceding number is increased by 1 if it is an odd number; thus, 1.235 should round off to 1.24 .
307073
The least count of an instrument is \(0.01 \mathrm{~cm}\). Taking all precautions, the most possible error in the measurement can be
1 \(0.005 \mathrm{~cm}\)
2 \(0.01 \mathrm{~cm}\)
3 \(0.0001 \mathrm{~cm}\)
4 \(0.1 \mathrm{~cm}\)
Explanation:
As we know that least count of an instrument is equal to the most possible error of the instrument, hence most possible error of the instrument will be \(0.01 \mathrm{~cm}\).
307075
Assertion : Significant figures for 0.200 is 3 where as for 200 it is 1. Reason : Zero at the end or right of a number are significant provided they are not on the right side of the decimal point.
1 If both Assertion & Reason are true and reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
Explanation:
Assertion is true but Reason is false. 0.200 contains 3 while 200 contains only one significant figure because zero at the end or right of a number are significant provided they are on the right side of the decimal point.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY
307076
Which of the following is wrong?
1 1.234 is rounded off to 1.23
2 1.236 is rounded off to 1.24
3 1.235 is rounded off to 1.23
4 1.225 is rounded off to 1.22
Explanation:
When the number to be dropped is equal to 5 , the preceding number is increased by 1 if it is an odd number; thus, 1.235 should round off to 1.24 .
307073
The least count of an instrument is \(0.01 \mathrm{~cm}\). Taking all precautions, the most possible error in the measurement can be
1 \(0.005 \mathrm{~cm}\)
2 \(0.01 \mathrm{~cm}\)
3 \(0.0001 \mathrm{~cm}\)
4 \(0.1 \mathrm{~cm}\)
Explanation:
As we know that least count of an instrument is equal to the most possible error of the instrument, hence most possible error of the instrument will be \(0.01 \mathrm{~cm}\).
307075
Assertion : Significant figures for 0.200 is 3 where as for 200 it is 1. Reason : Zero at the end or right of a number are significant provided they are not on the right side of the decimal point.
1 If both Assertion & Reason are true and reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
Explanation:
Assertion is true but Reason is false. 0.200 contains 3 while 200 contains only one significant figure because zero at the end or right of a number are significant provided they are on the right side of the decimal point.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY
307076
Which of the following is wrong?
1 1.234 is rounded off to 1.23
2 1.236 is rounded off to 1.24
3 1.235 is rounded off to 1.23
4 1.225 is rounded off to 1.22
Explanation:
When the number to be dropped is equal to 5 , the preceding number is increased by 1 if it is an odd number; thus, 1.235 should round off to 1.24 .
307073
The least count of an instrument is \(0.01 \mathrm{~cm}\). Taking all precautions, the most possible error in the measurement can be
1 \(0.005 \mathrm{~cm}\)
2 \(0.01 \mathrm{~cm}\)
3 \(0.0001 \mathrm{~cm}\)
4 \(0.1 \mathrm{~cm}\)
Explanation:
As we know that least count of an instrument is equal to the most possible error of the instrument, hence most possible error of the instrument will be \(0.01 \mathrm{~cm}\).
307075
Assertion : Significant figures for 0.200 is 3 where as for 200 it is 1. Reason : Zero at the end or right of a number are significant provided they are not on the right side of the decimal point.
1 If both Assertion & Reason are true and reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
Explanation:
Assertion is true but Reason is false. 0.200 contains 3 while 200 contains only one significant figure because zero at the end or right of a number are significant provided they are on the right side of the decimal point.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY
307076
Which of the following is wrong?
1 1.234 is rounded off to 1.23
2 1.236 is rounded off to 1.24
3 1.235 is rounded off to 1.23
4 1.225 is rounded off to 1.22
Explanation:
When the number to be dropped is equal to 5 , the preceding number is increased by 1 if it is an odd number; thus, 1.235 should round off to 1.24 .
