Chemistry-
General
Easy

Question

Statement 1:If a strong acid is added to a solution of potassium chromate it changes itscolour from yellow to orange.

Statement 2:The colour change is due to the oxidation of potassium chromate.

  1. Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
  2. Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
  3. Statement 1 is True, Statement 2 is False
  4. Statement 1 is False, Statement 2 is True

The correct answer is: Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1

Related Questions to study

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Total number of solutions of the equation 3x + 2 tan x =fraction numerator 5 straight pi over denominator 2 end fraction in x element of [0, 2straight pi] is equal to

In this question, we use the graph of tanx . The intersection is the total number of solutions of this equation. The graph region is [ 0, 2π ].

Total number of solutions of the equation 3x + 2 tan x =fraction numerator 5 straight pi over denominator 2 end fraction in x element of [0, 2straight pi] is equal to

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In this question, we use the graph of tanx . The intersection is the total number of solutions of this equation. The graph region is [ 0, 2π ].

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The number of sigma bonds in P subscript 4 O subscript 10 is:

The number of sigma bonds in P subscript 4 O subscript 10 is:

chemistry-General
General
chemistry-

Statement 1:Oxidation number of Ni in is zero.

Statement 2:Nickel is bonded to neutral ligand carbonyl.

Statement 1:Oxidation number of Ni in is zero.

Statement 2:Nickel is bonded to neutral ligand carbonyl.

chemistry-General
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General
Maths-

Suppose equation is f(x) – g(x) = 0 of f(x) = g(x) = y say, then draw the graphs of y = f(x) and y = g(x). If graph of y = f(x) and y = g(x) cuts at one, two, three, ...., no points, then number of solutions are one, two, three, ...., zero respectively.

The number of solutions of sin x = fraction numerator vertical line x vertical line over denominator 10 end fraction is

In this question, we have drawn the graph. The number of intersections of both function fx and gx are the number solutions. Draw the graph carefully and find the intersection points.

Suppose equation is f(x) – g(x) = 0 of f(x) = g(x) = y say, then draw the graphs of y = f(x) and y = g(x). If graph of y = f(x) and y = g(x) cuts at one, two, three, ...., no points, then number of solutions are one, two, three, ...., zero respectively.

The number of solutions of sin x = fraction numerator vertical line x vertical line over denominator 10 end fraction is

Maths-General

In this question, we have drawn the graph. The number of intersections of both function fx and gx are the number solutions. Draw the graph carefully and find the intersection points.

General
chemistry-

The first noble gas compound obtained was:

The first noble gas compound obtained was:

chemistry-General
General
chemistry-

Statement 1:The redox titrations in which liberated  straight I subscript 2 is used as oxidant are called as iodometric titrations
Statement 2:Addition of KI of CuSO subscript 4 liberates straight I subscript 2 which is estimated against hypo solution.

Statement 1:The redox titrations in which liberated  straight I subscript 2 is used as oxidant are called as iodometric titrations
Statement 2:Addition of KI of CuSO subscript 4 liberates straight I subscript 2 which is estimated against hypo solution.

chemistry-General
parallel
General
chemistry-

N subscript 2 O subscript 4 molecule is completely changed into 2 N O subscript 2 molecules at:

N subscript 2 O subscript 4 molecule is completely changed into 2 N O subscript 2 molecules at:

chemistry-General
General
Maths-

Statement-I : If sin squared space A equals sin squared space B and cos squared space A equals cos squared space B then straight A equals straight n pi plus straight B comma space straight n element of straight I
Statement-II : If sinA = sinB and cosA = cosB, then A equals n pi plus B comma n element of I

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason. Here, Start solving first Statement and try to prove it. Then solve the Statement-II.

Statement-I : If sin squared space A equals sin squared space B and cos squared space A equals cos squared space B then straight A equals straight n pi plus straight B comma space straight n element of straight I
Statement-II : If sinA = sinB and cosA = cosB, then A equals n pi plus B comma n element of I

Maths-General

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason. Here, Start solving first Statement and try to prove it. Then solve the Statement-II.

General
chemistry-

Arsine is:

Arsine is:

chemistry-General
parallel
General
maths-

Statement-I : The equation sin(cos x) = cos(sin x) does not possess real roots.

Statement-II : If sin x > 0, then 2 n pi less than x less than left parenthesis 2 n plus 1 right parenthesis comma n element of I

Statement-I : The equation sin(cos x) = cos(sin x) does not possess real roots.

Statement-II : If sin x > 0, then 2 n pi less than x less than left parenthesis 2 n plus 1 right parenthesis comma n element of I

maths-General
General
Maths-

Statement-I : In (0, straight pi), the number of solutions of the equation tan space theta plus tan space 2 theta plus tan space 3 theta equals tan space theta tan space 2 theta tan space 3 theta is two

Statement-II : tan space 6 theta is not defined at theta equals left parenthesis 2 straight n plus 1 right parenthesis pi over 12 comma straight n element of straight I

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason. Here, it has 5 solutions, but tanθ &tan3θ are not defined at straight pi over 2straight pi over 6fraction numerator 5 straight pi over denominator 6 end fraction. respectively so it remains only 2.

Statement-I : In (0, straight pi), the number of solutions of the equation tan space theta plus tan space 2 theta plus tan space 3 theta equals tan space theta tan space 2 theta tan space 3 theta is two

Statement-II : tan space 6 theta is not defined at theta equals left parenthesis 2 straight n plus 1 right parenthesis pi over 12 comma straight n element of straight I

Maths-General

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason. Here, it has 5 solutions, but tanθ &tan3θ are not defined at straight pi over 2straight pi over 6fraction numerator 5 straight pi over denominator 6 end fraction. respectively so it remains only 2.

General
Maths-

Statement-I : If sin x + cos x = square root of open parentheses y plus 1 over y close parentheses end root comma x element of left square bracket 0 comma pi right square bracket then x equals pi over 4 comma y equals 1

Statement-II : AM ≥ GM

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason. Here, Start solving first Statement and try to prove it. Then solve the Statement-II. Always, the AM–GM inequality states that AM ≥ GM.

Statement-I : If sin x + cos x = square root of open parentheses y plus 1 over y close parentheses end root comma x element of left square bracket 0 comma pi right square bracket then x equals pi over 4 comma y equals 1

Statement-II : AM ≥ GM

Maths-General

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason. Here, Start solving first Statement and try to prove it. Then solve the Statement-II. Always, the AM–GM inequality states that AM ≥ GM.

parallel
General
Maths-

Statement-I : The number of real solutions of the equation sin x = 2x + 2–x is zero

Statement-II : Since |sin x| ≤ 1

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason. Here, -1 ≤ sinx  ≤ 1 for all value, remember that.

Statement-I : The number of real solutions of the equation sin x = 2x + 2–x is zero

Statement-II : Since |sin x| ≤ 1

Maths-General

In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason. Here, -1 ≤ sinx  ≤ 1 for all value, remember that.

General
maths-

sin squared space x minus cos space 2 x equals 2 minus sin space 2 x if

sin squared space x minus cos space 2 x equals 2 minus sin space 2 x if

maths-General
General
maths-

sin squared space x minus cos space 2 x equals 2 minus sin space 2 x if

sin squared space x minus cos space 2 x equals 2 minus sin space 2 x if

maths-General
parallel

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