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Solved CBSE Class 7 Maths Chapter 12 Assertion and Reason Questions – Algebraic Expressions. Here we (Net Explanations) working very hard to providing you with the Important Assertion Reason Questions for this Chapter.
Assertion and Reason Questions Class 7 Maths Chapter 12 Algebraic Expressions
1.) Assertion: The expression y+ 19 is in one variable.
Reason: In y+19 the variable is y
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
2.) Assertion: The expression 5mn + 6 is in two variable.
Reason: In 5mn+6 are the two variable x and y.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
3.) Assertion: The expression a + b+ c is in three variable
Reason: In a+b+c are three variable a, b, c
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
4.) Assertion: The value of x^3 – 2x + 1 when x = 1 is zero
Reason: (1)^3 – 2(1) + 1 = 0.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
5.) Assertion: The value of x² + y² when x = 1, y = 2 is 5
Reason: (1)² + (2)² = 5.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
6.) Assertion : 4x^2 is a monomial
Reason: In Monomial contain only one term.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
7.) Assertion : 4l + 5m is a binomial.
Reason: 4l + 5m it contain two terms.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
8.) Assertion: 5x+6y is a Monomial.
Reason: The expression containing two terms is called monomial.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: d) both assertion and reason are false.
9.) Assertion : The product of 4x and 0 is 0.
Reason: Any value multiplied by zero is zero.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
10.) Assertion: The volume of a cuboid with length, breadth and height as 5x, 3×2 and 7×4 respectively is105x^7
Reason: Volume of cuboid = Length × breadth × height
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
11.) Assertion: The area of a rectangle whose length and breadth are 3y and 9y² respectively is 27y^3.
Reason: Area of rectangle = length x breadth .
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
12.) Assertion: a numerical coefficient is defined as a fixed number that is multiplied to a variable
Reason: the value of x^3+5x^2+3x+4 is 85 when x=3
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
13.) Assertion: A coefficient is a number multiplied by a variable
Reason: the coefficient of x in 4x+3y+7 is 4
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
14.) Assertion: The coefficient of x^2y in 17x^2y +28xy is 28
Reason: A coefficient is a number multiplied by a variable
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: c) assertion is correct but reason is false.
15.) Assertion: A coefficient is a number multiplied by a variable
Reason: the coefficient of 4xy is 4
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false
d) both assertion and reason are false
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.
16.) Assertion: like terms are terms that have the same variables and powers
Reason: The like terms are 5y, 6y.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false .
d) both assertion and reason are false .
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion
17.) Assertion: The like terms are xy, -6x
Reasons : like terms are terms that have the different variables and powers.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false .
d) both assertion and reason are false .
Ans: d) both assertion and reason are false.
18.) Assertion: An expression which contains three terms is called a trinomial.
Reason: ab + a +b is a trinomial.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false .
d) both assertion and reason are false .
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion
19.) Assertion: In general, an expression with one or more terms is called a polynomial.
Reason: Thus a monomial, a binomial and a trinomial are all polynomials.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false .
d) both assertion and reason are false .
Ans: b) both assertion and reason are correct but reason is not correct explanation for assertion
20.) Assertion: Expressions are made up of terms.
Reason: the addition of the terms 4xy and 7 gives the expression 4xy + 7.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false .
d) both assertion and reason are false .
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion
21.) Assertion: The sum of two like terms is a like term with coefficient equal to
the sum of the coefficients of the two like terms.
Reason: 8xy – 3xy = (8 – 3 )xy = 5xy.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false .
d) both assertion and reason are false .
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion
22.) Assertion: numerical coefficient is defined as a fixed number that is multiplied to a variable.
Reason: the value of 9x-38 when x=4 is -2
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false .
d) both assertion and reason are false .
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion
23.) Assertion: numerical coefficient is defined as a unfixed number that is multiplied to a variable
Reason: the value 4x^3+3x^2+7 when x=1/2 is 6
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false .
d) both assertion and reason are false .
Ans: d) both assertion and reason are false.
24.) Assertion: –A binomial is an algebraic expression that has two non-zero terms
Reason: -4x/5 is an binomial.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false .
d) both assertion and reason are false .
Ans: c) assertion is correct but reason is false.
25.) Assertion: An algebraic expression consists of a group of terms separated by operators, which are either plus signs or minus signs
Reason: 4x^3-5x^2+8xy+9y^2 in these expression total 4 terms are present.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false .
d) both assertion and reason are false .
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion
26.) Assertion: like terms are terms that have the same variables and same powers.
Reason: the terms 7xy and 4x^2 are not like terms.
a) both assertion and reason are correct and reason is correct explanation for assertion
b) both assertion and reason are correct but reason is correct explanation for assertion
c) assertion is correct but reason is false .
d) both assertion and reason are false .
Ans: a) both assertion and reason are correct and reason is correct explanation for assertion
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