Home
Class 12
CHEMISTRY
Assertion (A) : Nuclide AI(13)^(30) is l...

Assertion (A) : Nuclide `AI_(13)^(30)` is less stable than `Ca_(20)^(40)`
Reason (R ) : Nuclide having odd number of proton and neuctrons are generally unstable

A

If both (A) and (R ) are correct, and (R ) is the correct explanation of (A).

B

If both (A) and (R ) are correct, but (R ) is not the correct explanation of (A)

C

If (A) is correct, but (R ) is incorrect.

D

If (A) is incorrect, but (R ) is correct

Text Solution

Verified by Experts

The correct Answer is:
B
When the `n//p` ratio is more than 1, then nuclei is unstable but when it is 1, then nuclei is stable. In `._(13)Al^(30),n//p=17//13=1.3(i.e.,` more than 1 , so less stable `)`, but in `._(20)Ca^(40), n//p1( ` more stable `)`
Nuclei with odd number of protons and neutrons are generally unstable.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • NUCLEAR CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Archives Integer-Type|1 Videos

  • NUCLEAR CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Archives Fill In The Blanks|5 Videos

  • NUCLEAR CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Archives Single Correct Anser|9 Videos

  • NCERT BASED EXERCISE

    CENGAGE CHEMISTRY|Exercise Nuclear Chemistry (NCERT Exercise)|29 Videos

  • ORGANIC COMPOUNDS WITH FUNCTIONAL GROUP

    CENGAGE CHEMISTRY|Exercise Archives Analytical And Descriptive|24 Videos

Similar Questions

Explore conceptually related problems

Assertion (A): NCl_(5) is less stable than PCls Reason (R): P does not contain d orbitals

Assertion (A) : Isobars are the nuclei having same mass number but different atomic number. Reason (R) : Neutrons and protons are present inside a nucleus .

Knowledge Check

  • Statement: Nuclide ._(13)^(30)Al is less stable than ._(20)^(40) Ca Explanation: Nuclides having odd number of protons and neutrons are general unstable.

    A
    `S` is correct but `E` is wrong.
    B
    `S` is wrong but `E` is correct.
    C
    Both `S` and `E` are correct and `E` is correct explanation of `S`.
    D
    Both `S` and `E` are correct but `E` is not correct explanation of `S`.

  • Each question contains STATEMENTS-1 (Assertion) and STATEMENT -2 (Reason). Examine the statements carefully and mark the correct answer according to the instructions given below: STATEMENT-1: Nuclide _(13)^(30)Al is less stable than _(20)^(40)Ca . STATEMENT-2: Nuclide having odd number of protons and neutrons are generally unstable.

    A
    If both the statements are TRUE and STATEMENT-2 is the correct explanation of STATEMENT-1
    B
    If both the statement are TRUE but STATEMENT-2 is NOT the correct explanation of STATEMENT-1
    C
    If STATEMENT-1 is TRUE and STATEMENT-2 is FALSE
    D
    If STATEMENT-1 is FALSE and STATEMENT-2 is TRUE

  • Assertion (A) : Fe^(3+) (g) ion is more stable than Fe^(2+)(g) ion. Reason (R) : Fe^(3+) ion has more number of unpaired electrons than Fe^(2+) ion.

    A
    Both A and R true and R is the correct explanation of A
    B
    Both A and R are true but R is not a correct explanation of A
    C
    A is true but R is false
    D
    A is false but R is true

    • Similar Questions

    Explore conceptually related problems

    Assertion : Anions are larger in size than the parent atom. Reason : In an anion, the number of protons in the nucleus is less than the number of electrons moving around it.

    Assertion (A): SF_(6) molecule is unstable. Reason (R): A stable molecule must have 8 electrons around the central atom. i.e. octet rule should be satisfied.

    Assertion (A): Two atoms of different elements having same mass number but different atomic numbers are called isobars. Reason (R): Atomic number is the number of protons present and mass number is the total number of protons and neutrons present in a nucleus.

    Assertion (A) : [Pt(en)_(2)Cl_(2)]^(2+) complex is less stable than [Pt(NH_(3))_(4)Cl_(2)]^(2+) complex. Reason ( R ) : [Pt(en)_(2)Cl_(2)]^(2+) complex shows chelate effect.

    Directions : This contain Assertion and Reason type question, Each question has 4 choices (1),(2),(3) and (4), out of which only one correct. Assertion(A) White P is less stable and hence, more reactive than other solid phases under normal conditions. Reason ( R ) There is an angular strain in the P_4 molecule.

    Home
    Profile