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IX - (Science)

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my test

General CBSE Discussion - Classes III-X

(416 Posts)

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This thread is dedicated to discuss general queries for CBSE class 3rd to 10th.

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Zakir Hasan

Shared from IX - (Science) on Apr 23, 2020 1:31 PM

Which of the following species has more number of electrons than the number of neutrons?

Al³⁺

O^2–

F^-

Na⁺

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Zakir Hasan

In question no 17 the no of electron is 8

In question no 17 the no of electron is 8 Please type your answer before submitting.

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Akshay

Posted on Dec 07, 2021 4:58 PM

I think TCY has rectified the solution.

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Sumit Khanna

Shared from my test on Jun 24, 2019 2:07 PM

$| \sqrt[2]{A A} | + \sum_{\begin{matrix} 0 \leq i \leq 4 \\ 0 < j < x \end{matrix}} A (4, 3) + ℜ ℑ$

asgdkjagjsdg askjdg asndg ajsdhdsahdfhg fhasdfhsafdhgafdhga fhgasfdhgsa fhgsafd

\sqrt[2]{\frac{5703}{1256}}

asddadaa sad

e^{(\frac{α^{\frac{b}{2}} + r^{\frac{θ + Φ}{2 σ}}}{1 + \frac{δ x}{δ y} θ δ})} = \int_{r, θ, β = 0}^{\infty} \frac{{(s i n \frac{θ + Φ}{2 σ})}^{\frac{Φ r}{e}}}{e^{\frac{2}{3}}}

\sum_{12 \vec{a}} 5 \vec{a} \log 56 + \log 54 \infty ⋑ ⊉ 1235 A A =_{79}^{45} B \times + \pm 78 ⨿

\sum_{15 \vec{a}} 5 \vec{a} \log 56 + \log 54 \infty ⋑ ⊉ 1235 A A =_{79}^{45} B \times + \pm 78 ⨿

asgdkjagjsdg askjdg asndg ajsdhdsahdfhg fhasdfhsafdhgafdhga fhgasfdhgsa shubham

\sqrt[2]{\frac{57 03}{125}}

mangal ashdgfahdfahsdf ahgsfdagshfd ahsfdhasfdahgfdahgsf ahgsfdhgafsd adadadsd

\sqrt[2]{\frac{5705}{125}}

asddadaa sad 123

\sum 5

Ⅎ & \nabla^{2} a ⨌ 7 a + 8 b \sum_{\begin{matrix} 0 \leq i \leq 5 \\ 0 < j < 4 \end{matrix}} P (6, 8) + \begin{matrix} 1 & 1 & 1 \\ 1 & x & 1 \\ 1 & 1 & x \end{matrix}

A =_{2}^{3} B g f d g d f c s f s d f \sqrt{[\begin{matrix} a_{11} & a_{12} \\ a_{21} & a_{22} \end{matrix}]} A \leftrightarrow_{2}^{3} B 3

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Sumit Khanna

Great MathMl Working

Great MathMl Working Please type your answer before submitting.

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Rahul Nagpal

Shared from Reasoning - 3 (Coast Guard) on Jul 19, 2017 2:26 PM

Directions: Complete the series.

DEF, HIJ, MNO, ___

STU

RST

RTV

QRS

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Kaleem Pasha

STU

STU Please type your answer before submitting.

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Tarun Sai Damarla

Shared from Quadratic Equations - 1 on Mar 22, 2017 7:32 PM

Find the real roots of the quadratic equation x²- 9x + 18 = 0 and for the two roots x and x₁ ( where x > x₁), find a and b such that Log₁₀a = x and Log₁₀ b = x_1.

18, 6

10³, 10⁹

10⁶, 10³

None of these

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Rahul Nagpal

None of this

None of this Please type your answer before submitting.

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Pk Pavan Kumar

Shared from Quadratic Equations - 1 on Mar 21, 2017 8:50 PM

Which of the following equations has no real roots?

x² + x - 12 = 0

x² – x – 1 = 0

2x² + 7x + 5 = 0

x² + x + 1 = 0

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Silvester

For the 4th equation, D < 0. Hence, it will have no real roots.

For the 4th equation, D < 0. Hence, it will have no real roots. Please type your answer before submitting.

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General CBSE Discussion - Classes III-X

(416 Posts)

This thread is dedicated to discuss general queries for CBSE class 3rd to 10th.